1: Behind and down and out (3)
2: Greek characters suggest dawn (3)
3: Changed musician not so offensively pious (13)
4: Nick shouts - and theres trouble brewing! (3,5,2,3)
5: Having red nose, turned back (7)
6: One later enters, like, with matching sides (11)
8: Pal teased about crazy snack food (6,7)
9: Like a high ranking diplomat's awful ambrosia salad (13)
10: Steer TS into alternative routes (4,7)
16: Otherwise angered by a fencers call (2,5)
18: A hint for the snooker champ? (3)
22: One may be a very long time (3)
23: Looks like an eyesore, sounds like an eyesore (3)