Solving time, 18 mins
* = anagram < = reversed
ACROSS
7 A L (L ERG) IST
9 ASS ET silly (noun)
11 DEVONSHIRE CREAM (over merchandise)*
12 PURL(O)IN
13 ILL EG AL(Capone)
14 GENET Double definition
15 PIG(eon)
16 TU TO despaiR
17 NU (B BIN)S Sun<
19 BRIE FED
21 ASCENSION ISLAND (A son, ass inclined)*
22 (d)OWNER
23 S (PASM) ODIC (Pam’s)* (disco)*
DOWN
1 P (AID)-UP
2 PRINTOUT (torn it up)*
3 LIC(e) HEN
4 STERLING (pounds) Double definition
5 C(h) ANCEL
6 ST ‘UMBLER
8 LIVER AND BACON (bland Veronica)*
10 SLEIGHT OF HAND (the folding has)*
14 GO (N FAL) ON
15 P (ASTI) EST
16 T (OILS) O ME
18 IGNORE (Region)*
19 BAN YAN (nay nab)<
20 DE DUCT Ed<