Rock and roll dance (4)
I believe the answer is:
reel
I believe this clue is a triple definition!
'rock' is the first definition.
(reel can mean to rock around)
'and' is a link.
'roll' is the second definition.
(eg a reel or roll of film)
'dance' is the third definition.
(I know that reel is a type of folk dance)
(Other definitions for reel that I've seen before include "wind-up?" , "unwind?" , "Fishing rod attachment" , "energetic dance" , "Lurch; spool" .)