Search round for dance band (5)
I believe the answer is:
combo
'dance band?' is the definition.
(combo is a kind of dance band)
'search round' is the wordplay.
'search' becomes 'comb' (combing is a kind of searching).
'round' becomes 'o' (o is a circular letter).
'comb'+'o'='COMBO'
'for' is the link.
(Other definitions for combo that I've seen before include "Small pop group" , "Small jazz or dance band" , "musicians" , "Small (jazz or rock) band" , "group of players" .)