Many a song at a dance club (5)
I believe the answer is:
remix
'many a song at a dance club' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for remix that I've seen before include "New blend (recording, recipe, etc)" , "Make a new version of a recording" , "Updated record" , "altered recording" , "Music produced by electronic alteration of tracks" .)