Film correct requirement for icy roads (4,4)
I believe the answer is:
true grit
'film' is the definition.
(1969 or 2010 Western film)
'correct requirement for icy roads' is the wordplay.
'correct' becomes 'true' (associated in meaning).
'requirement for icy roads' becomes 'grit' (grit is used on icy roads).
'true'+'grit'='TRUE GRIT'
(Other definitions for true grit that I've seen before include "Genuine courage (John Wayne's)" , "movie" , "vehicle for John Wayne" , "Film" , "Western" .)