Copper finds way to get some food (4)
I believe the answer is:
curd
'some food' is the definition.
(curd is a kind of food)
'copper finds way' is the wordplay.
'copper' becomes 'cu' (chemical symbol).
'finds' is a charade indicator (letters next to each other).
'way' becomes 'rd' (short for road).
'cu'+'rd'='CURD'
'to get' acts as a link.
(Other definitions for curd that I've seen before include "Thickened milk" , "It's used in making cheese" , "Coagulated milk, used to make cheese" , "Fatty stuff" , "Part of milk" .)