1: Orchestra playing for farm animal (4,5)
2: 'Naked Gun' actor prepares to be dubbed in (in soundtrack) (7)
4: Reveals fatness I'm developing (9)
5: Catch the sound of the first organ (5)
6: Theologist embraced love's point when medicated. (5)
8: 'Betrayal' is a theatrical success (7)
9: Unable to move, I rent sorely (5)
13: Forks over wire customized for special explosives (9)
15: 'Rats!' snorted Dotty (7)
16: Greeting South-East Asian from Tibet? (9)
18: After church, scream at sight of mouse's boldness (5)
20: Took advantage of Delia, heading up to northern Virginia (7)
21: Dance to a higher degree in rugby? (5)
22: 19-across, perhaps, bites indeed (5)
23: Scheme conclusion for jet set (5)