Feature film put on before a big fight (3,5)
I believe the answer is:
war paint
'feature film' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'on before a big fight' is the wordplay.
'on' says to put letters next to each other.
'before' becomes 'paint' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'a big fight' becomes 'war' (I've seen this in another clue).
'paint' after 'war' is 'WAR-PAINT'.
'put' is the link.
Can you help me to learn more?
(Other definitions for war paint that I've seen before include "Make-up (for native Americans?)" , "what woman may have to face" , "Cosmetics" , "Make-up (colloq.)" , "Facial decoration showing hostile intent" .)