1: Tour with crazy Mrs. Barton (9)
2: Tweak with wrong end of a pin (3)
3: Vegetables are chickens? (9)
4: Ray! Say lad, smile! (7)
5: Playing on cello in A major's superior (7)
6: Reproduction? From him? A gelding? (5)
7: Interest in a revolutionary activist's broadcast (5)
10: Exposed record to drop some data (9)
12: Tongue-in-cheek advice to enter cast (5,1,3)
16: Gray's line about young animals (9)
17: Courier parting from Essen, Germany (9)
19: Snippet from flick I esteem as more distasteful than any other (7)
20: Pet pig backing up after starting to tap dance (3-4)
22: Gardener's concoction left in a lot (5)
23: Mechanical worker pushing start button in the depths of the plant (5)
27: Grant loud colour (3)