An excellent puzzle as usual
Across
1 Quiet – that’s our team’s appearing between rugby posts
HUSH quiet US (our team) in HH (rugby posts)
4 Immobility’s associated with city transport ECSTASIS transport
EC (city) STASIS (immobility)
11 Looks dark after once mixing shades
ENCOLOURS shades (ONCE)* LOURS (looks dark)
12 Hold on, after backing Asian currency for investment of pound
NELSON hold ON after L (pound) in SEN< (Japanese currency backing)
13 One runs into workers turning against property
IN REM against property (law) I (one) R (runs) in MEN< (workers turning)
15 Make stars of unknown bands? That’s revolutionary
STELLIFY make into stars Y (unknown) FILLETS< (bands revolved)
16 Woman in Human Resources, name of Castle
HEVER castle in Kent EVE (woman) in HR
19 I am satisfied after investing in factory-owner’s current machine
MILLIAMMETER electric machine I AM MET (satisfied) in MILLER
20 Attorney to ridicule university syllabus that’s due ATTRIBUTABLE due
ATT (attorney) RIB (ridicule) U (university) TABLE (syllabus)
23 Study of Parisian participating in summer in Nice, laid back ETUDE study
DU (of in French) in ETE (summer in French) < (laid back)
25 Wasting little time, ailing set bathed here? BETHESDA
(SE[t] BATHED)*
26 Head off frustrated drunk OILED drunk [f]OILED (frustrated – head off)
27 Region around river river’s no longer behind ARREAR behind (obs)
R (river) in AREA (region) R (river)
28 Again implement watercourse for church RE-ENFORCE implement again
REEN (watercourse) FOR CE (church)
29 Strait’s water-plant surrounding ship under pressure STRESSED under pressure
ST (strait) SS (ship) in REED (water-plant)
30 Marry women in love? Not half WIFE marry (take to wife)
W (women) I (in) FE[el] (love not half)
Down
1 Servant to challenge Scots monarch in prison HENCHMAN servant
HEN (challenge Scots) HM (monarch) in CAN (prison)
2 Old East European leaders of some Czechs linked to throne SCLAV old E European
S[ome] C[zechs] LAV (throne)
3 Crowd left in Queen’s Head in Yeovil (a pub) HOSTELRY pub
HOST (crowd) L (left) in ER (queen) Y[eovil]
5 Carbon assets reassessed by instruments in deep?
CONTRABASSES deep instruments (CARBON ASSETS)*
6 Heavenly star adopting universal style, taking on Hamlet? SUPERMUNDANE heavenly U PERM (universal style) in SUN (star) DANE (Hamlet)
7 Musical effect’s unfortunate produced by couple of trombonists TRILL music
TR[ombonists] ILL (unfortunate)
8 Hand bag no longer Thatcher’s prime feature? SCRIPT feature
SCRIP (old pilgrim’s pouch) T[hatcher’s] (prime)
9 Reserve occupies first slip? Something of a waste ICEFIELDS wasteland
ICE (reserve) FIELDS (action of first slip in cricket)
10 Asian coins American picked up? Gosh! SUMY money in Uzbekistan
SU (US< American picked up) MY (gosh)
14 Enthusiasm about computing etc I say elevated current spirit ZEITGEIST (spirit of the age) IT (computing etc) I EG< (I say elevated) all in ZEST (enthusiasm)
17 US lawyer’s pitch about homicide’s last option here? DEATH ROW &lit
E (homicide’s last letter) in DA (American lawyer) THROW (pitch)
18 Topless suit repeatedly showing exotic charm GREEGREE (charm)
[a]GREE (suit topless) twice
21 One no longer claiming lieutenant’s elevated in rank TITLER (claimant obs)
LT< (lieutenant’s elevated) in TIER (rank)
22 Decides once to eradicate river mosquito AEDES (mosquito)
AREDES (decides old) minus R (river)
24 Some cute ribbons where babies may be found? UTERI (babies source)
hidden in [c]UTE RI[bbons]
25 Excellent stud’s aberration BOSS triple definition
( )* = anagram [ ] = omit < = reverse