Bond film entailed devil in disguise (4,3,3,3)
I believe the answer is:
live and let die
'bond film' is the definition.
(I've seen this before)
'entailed devil in disguise' is the wordplay.
'in disguise' is an anagram indicator.
'entailed'+'devil'='entaileddevil'
'entaileddevil' is an anagram of 'LIVE AND LET DIE'.
(Other definitions for live and let die that I've seen before include "Bond film" , "James Bond novel" .)