Cryptic across

7 I hear you French make magic mumbo-jumbo (6)
8 Sports venues Christians like to stay on the perimeter of, not near? (6)
9 Dynasty is created through much inbreeding (4)
10 Oxford college for those not morally perfect? (3,5)
11 Bishop on the throne, here to reign but abysmally, without force (7)
13 US soldier gets honourable discharge near Jerusalem (5)
15 You and I abandoned Pertwee unwisely: the idiot... (5)
17 ...he went on to reform music in a Germanic Benny Goodman style, with Peggy, they say! (7)
20 He’s two-timing French friend in a grand way (8)
21 Putting pen to Times to write in ‘CHARON’, to get one across here? (4)
22 A lawyer Samuel turned down over the defence of Jews (6)
23 Kind of savings one put to a holiday, initially, to book (6)