Work on film, perhaps - Director involved in return of Bond (4)
I believe the answer is:
edit
'work on film perhaps' is the definition.
'director involved in return of bond' is the wordplay.
'director' becomes 'd'.
'involved in' indicates putting letters inside.
'return of' is a reversal indicator.
'bond' becomes 'tie' (I've seen this before).
'tie' in reverse letter order is 'eit'.
'd' put within 'eit' is 'EDIT'.
(Other definitions for edit that I've seen before include "Make changes to (text)" , "work on newspaper?" , "Amend text" , "Check text for publication" , "Emend" .)