I found this very enjoyable, a good example of how to make a crossword accessible without making it dull. Something in here for everybody. Thanks Commoner.

| Across | ||
| 1 | REHEARSE | 
 Go over and try again before she loses heart (8) 
RE HEAR (try again, in court) before ShE (losing heart) 
 | 
| 5 | BYE-BYE | 
 Believe, when spoken repeatedly for so long (3-3) 
BYE sounds like (when spoken) “to buy” (believe) repeated 
 | 
| 9 | ALBUM | 
 A large posterior – could be a record (5) 
A L (large) BUM (posterior) 
 | 
| 10 | OFF THE PEG | 
 Fellow happening to appear in paper, say, after zip’s mass-produced (3,3,3) 
F (fellow) then HEP (happening, groovy man!) inside (to appear in) FT (paper) EG (say) all following (after) O (zip, nothing) 
 | 
| 12 | HOTSHOT | 
 Ace flaming sambuca? (7) 
double/cryptic definition 
 | 
| 13 | ODORISE | 
 Give bouquet to woman in love regularly (7) 
DORIS (a woman) in lOvE (regular selection from) 
 | 
| 14 | SUCCULENT | 
 Lush? One may be potted! (9) 
double definition – ‘juicy and fleshy’ or a cactus, for example 
 | 
| 16 | CHILD | 
 Kid about with date after good day by lake (5) 
C (circa, about) with D (date) following (after) HI (good day) L (lake) 
 | 
| 17 | BOOZE | 
 Drink black slime (5) 
B (black) OOZE (slime) 
 | 
| 18 | PENDRAGON | 
 Write fourth-rate paper about King Arthur, for example (9) 
PEN (write) D (fourth rate, grade D) RAG (paper) ON (about) – ancient title gvien to certain kings, from Welsh “Pen Ddraig” meaning chief dragon 
 | 
| 20 | ICE OVER | 
 Freeze as a result of voice being affected by queen (3,4) 
VOICE* anagram=being affected by ER (The Queen) 
 | 
| 22 | VIETNAM | 
 Energy shown crossing mountain in Asian country (7) 
VIM (energy) contains (shown crossing) ETNA (mountain) 
 | 
| 24 | CONCORDAT | 
 Agreement doctor can set out (9) 
(DOCTOR CAN)* anagram=set out 
 | 
| 25 | ICTUS | 
 Sudden attack leads to international court taking unprecedented steps (5) 
first letters (leads to) of International Court Taking Unprecedented Steps – a fit or sudden attack (medical) 
 | 
| 26 | EXTRAS | 
 5 minor players? (6) 
double definition – two byes in cricket 
 | 
| 27 | PREMISES | 
 The aforesaid component of sleep, REM, is essential (8) 
 found inside (of) sleeP REM IS ESsential – same as premise, used pluralised in a legal context 
 | 
| Down | ||
| 1 | REACHES | 
 Bays once and pines once more? (7) 
RE-ACHES (pines one more) – in the definition ‘once’ indicates usage is obsolete 
 | 
| 2 | HABIT | 
 Hard to overcome something that’s an addictive practice (5) 
H (hard) in front of (to overcome) A BIT (something) 
 | 
| 3 | ALMSHOUSE | 
 Large fancy homes accommodating us, next to a home for the poor (9) 
L HOMES* anagram=fancy contains (including) US following (next to) A 
 | 
| 4 | SHORT-TEMPERED | 
 Embarrassed by horrible stepmother, quick to anger (5-8) 
RED (embarrassed) following (by) STEPMOTHER* anagram=horrible 
 | 
| 6 | YAHOO | 
 Not beginning to show disapproval, grass up lout (5) 
bOO (to show disapproval, not beginning) with HAY (grass) reversed (up) 
 | 
| 7 | BAPTISING | 
 Into font, perhaps tip out gallons for christening (9) 
BASIN (font perhaps) contains (into … put) TIP* anagram=out then G (gallons) 
 | 
| 8 | EGGHEAD | 
 Intellectual is partial to Clegg, he admits (7) 
found inside (part of, is partial to) clEGG HE ADmits 
 | 
| 11 | FLOATING VOTER | 
 One crosses indecisively from side to side! (8,5) 
cryptic definition, a voter makes a cross on the ballot paper 
 | 
| 15 | CLOSE-KNIT | 
 Complete outfit, lining new and bound together (5-4) 
CLOSE (complete) KIT (outfit) with N (new) as lining (inside) 
 | 
| 16 | CARPE DIEM | 
 Make the most of the time you have and throw cream pie over old copper (5,4) 
(CREAM PIE)* anagram=throw containing (over) D (old penny, copper) 
 | 
| 17 | BRIOCHE | 
 Before Christ consumes port, he gets bread (7) 
BC (before Christ) contains (consumes) RIO (port in Brazil) then HE 
 | 
| 19 | NEMESIS | 
 Revolutionary seen getting married is an enemy (7) 
SEEN reversed (revolutionary) contains (getting) M (married) then IS 
 | 
| 21 | VIOLA | 
 There you go – one swaps places with old Shakespearean character (5) 
VOILA (there you go) with I (one) swapping places with O (old) – heroine of Twelfth Night 
 | 
| 23 | NATES | 
 Upset Irish chap taking time to show buttocks (5) 
SEAN (Irish chap) reversed (upset) containing (takes) T (time) 
 | 
*anagram
definitions underlined
definitions underlined
Yes, I agree that this was an excellent puzzle. I finished with CHILD after CARPE DIEM, both of which required careful analysis of the wordplay.
Yes, I enjoyed this one, too. It was not too easy but accessible with a bit of thought. I like clues which make you search your brain for several meanings such as here in 1d and 16ac. Took ages to get 17ac, don’t ask me why!
Thanks both
A good crossword. I’ve even learnt a couple of new words – 25a & 23d!
Query the construction and parsing of 10A, where it would seem that HEP needs to be in FT, which it isn’t. Only F[ellow] is inside FT. If I’m missing something, someone will tell me.
Mini typo in 27A, singular is premise.
Thanks to Crosophile and PeeDee.
Hi gwep @4
10ac does work if you read it as O + F + (HEP in FT EG).
@5Gaufrid OK, got it, thanks.