Enjoyable puzzle, that I found easier than usual, solving time 15 mins.
* = anagram < = reversed
ACROSS
1 RUM PUS sup<
5 SABO TAG E (ASBO)*
9 FORTUNE COOKIE (I reckon out of e – end of Chinese)*
10 HOWARD’S END Last two Tory leaders
11 (j)IFFY
12 STANDIN(g) S
14 HA (SS) LE(y) Bill Haley, I think, who started rock and roll.
15 ACCRUE a “crew”
17 IN THE CAN can = prison. With effectively a three-letter word with just one letter known, while I was confident about it, welcomed the availability of ‘reveal’ to reassure.
19 SU FI (if US)< A poem title well-known to solvers
20 AL L (THE RA) GE (leg)* (heart)* Good definition in the context (‘hip’)
22 SISTINE CHAPEL c h in (I see paints)* L (Latin) In the Vatican
23 Peter C (R) USHING
24 YV(ON)NE Fave clue, very subtle, I thought. on (cricket) in envy (green feature)<
DOWN
2 UP FRONT
3 P (ARK) A
4 SOUND BIT E
5 S TEVEN SPIEL BERG (event)*
6 BLOOD cf brood
7 TAKE ISSUE
8 G (LEEF) U L (feel)<
13 NARCISSUS Fell in love with his own reflection.
14 HIT T (HE H) AY
16 Tom CRUISE R
18 AN (GOL A)N (a log)<
20 AL (I) BI Albi’s a town in France.
24 REPRO Hidden