Finish filming making hit western (4)
I believe the answer is:
wrap
'finish filming' is the definition.
(I've seen this before)
'hit western' is the wordplay.
I cannot really see how this works, but
'hit' could be 'rap' (rap can mean to hit or knock) and 'rap' is found within the answer.
'western' could be 'w' and 'w' is found in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'making' is the link.
Can you help me to learn more?
(Other definitions for wrap that I've seen before include "Encase" , "Cover; loose garment" , "Envelop" , "Cover a gift" , "Enclose in paper or material" .)