Film of dance? (4)
I believe the answer is:
reel
I believe this clue is a double definition.
'film' is the first definition.
(I know that reel is a type of film)
'dance?' is the second definition.
(reel is a kind of dance)
'of' is the link.
(Other definitions for reel that I've seen before include "Air" , "unwind?" , "Dance; feel giddy" , "energetic dance" , "Scottish/Irish dance" .)