Note that in (another) relaunch, the crossword has moved back towards the end of the main paper p. 101 of 104 in my edition. Solving time, 17 mins.
* = anagram < = reversed
ACROSS
1 SANDBAGGER Double definition
6 NUMB (er) One is a number
9 HAN (DOVER) S
1O B (ASS) O (OB = old boy)<
11 BERKELEY CASTLE (Celeb takes lyre)*
12 SP (RA) IN
14 RAFFLES Double definition
16 A (UNTIE) S
18 DERIDE hidden
19 A FLEA IN ONE’S EAR Double definition
22 ADI (O) S (said)*
23 E M BRA SURE
24 A (ST) I A1 = excellent
25 BOTTLENECK Double definition
DOWN
1 SO HO (OS)<
2 NO N CE
3 BLOCK CAPITALS In which the clue is written
4 G REMLIN (Merlin)*
5 E S SAY ER
7 UNSETTLED Double definition
8 BLOKEISH (Hol bikes)*
10 BEAUFORT SCALE Excellent cryptic definition
13 PA (NELL I) ST
15 LAVA-LAVA lava (hot stuff) twice. A Polynesian skirt. Amusing surface
17 SAN REMO (Moaners)*
18 DINGBAT (debating)* less e = energy
20 A CUTE
21 WEEK Referring to Old Testament account. Another very good surface.