Band booking (3)
I believe the answer is:
gig
'band booking' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for gig that I've seen before include "Live musical performance" , "A one-night musical engagement" , "A single musical performance - it's a palindrome" , "Live performance by musicians" , "One-night stand" .)