1: Varies order in command? That's debatable (13)
2: What's left when you burn the tree (3)
3: Small drinks for each young man's agent (11)
4: Convertible has odd bar in instrument panel (9)
5: Abstract art is just one step.(5)
6: God! Get real! There's no point getting upset (3)
7: Tranquillises extremely senile escorts (7)
9: Prejudice runs wild in a legal system (13)
11: Wander around inside territory (3)
13: To implicate is innate, swallowing a hundred backing Space Station One (11)
16: Bird accompanying gangster or outlaw (5,4)
19: Ape, bird, teal, buck (7)
22: Neil lost a letter and ended up with nothing (3)
24: Regretted backing up grasping tip of massive object (5)
27: Mediterranean leaves unfashionable coins? (3)
28: In no state to contain a pregnant virgin? (3)