1 The Reverend's horse tells lies still (9)
6 Tea dance abandoned a third of the way through (3)
8 Some drive towards centre (5)
9 Cologne and another nearby city to join the Church of England (7)
10 Thanks, I said, for oil (3)
11 Villain got Regent drunk (6,3)
13 Christie's main man quietly taking offers in the region of twenty at first (6)
14 Use it to clean up rusted sculpture? (6)
16 Build up multiple deliveries in front of gallery (9)
17 Crack habit (3)
19 Assembled and voted for right instead of left (7)
21 Drop unsheathed cannula (5)
22 Fix some games of tennis (3)
23 Digests crumbly scones outside lair (9)