Fishing rod attachment (4)
I believe the answer is:
reel
'fishing rod attachment' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for reel that I've seen before include "Part of film; dance" , "The angler pulls in his line using this" , "Stagger about in lively dance" , "Lively Scottish dance" , "Lurch; spool" .)