Scour round for small jazz band (5)
I believe the answer is:
combo
'small jazz band' is the definition.
(I've seen this in another clue)
'scour round' is the wordplay.
'scour' becomes 'comb' (I've seen this before).
'round' becomes 'o' (round can mean a round object).
'comb'+'o'='COMBO'
'for' is the link.
(Other definitions for combo that I've seen before include "Small (jazz or rock) band" , "musicians" , "Music group" , "Small pop group" , "Small jazz or dance band" .)