1: Skill is extremely tangible for a performer (7)
2: ESP school worried ancient dramatist (9)
3: There is no commoner old coin (5)
4: Palestinian group participating in way out feat (7)
5: Drive an unusual visitor (7)
6: Tom Sharpe source of imagery (9)
7: Record left by teacher in Siam (5)
8: Beneficiary of ticket sales, in general (7)
15: Self-indulgent life of dolt upset by musical (5,4)
16: Funny noises can rise from below (9)
17: Fashionable journalist coming back after battle (1,2,4)
18: Insignificant trial includes six from old Rome (7)
19: Low-rated senator upset (3-4)
21: Mountaineers drawing female inside hot springs (7)
23: Sister leaves, seeing torment of supernatural servant (5)
25: Vapour in the street the final morning (5)