1a) Playing cold, gig isn't heard in its proper sequence (5-7)
2d) Odd bits out of true in faulty bearings for engine (3,7)
3d) Spanish omelette picked up in stall? It rots (8)
7d) Sacking about 8 fellow's kept for dealing with faulty 29? (12)
21a) Elimination contest's OK briefly when it's backed (8)
Sorry for no letters. All help much appreciated