Film's leads hiding – icy, stuck up (4,4)
I believe the answer is:
star wars
'film's' is the definition.
(I've seen this before)
'leads hiding icy stuck up' is the wordplay.
'leads' becomes 'stars' (in movie or show).
'hiding' is an insertion indicator.
'icy' becomes 'raw'.
'stuck up' shows that the letters should be reversed in order.
'raw' reversed gives 'war'.
'stars' placed around 'war' is 'STAR WARS'.
(Other definitions for star wars that I've seen before include "Strategic Defense Initiative (US) - sci-fi film" , "Picture" , "Cult film - Reagan initiative" , "George Lucas's cult sci-fi film" , "Movie" .)