... trumpet, say, for money (5)
I believe the answer is:
brass
This clue is a double definition.
'trumpet say' is the first definition.
(trumpet is a kind of brass)
'for money' is the second definition.
(I've seen this in other clues)
(Other definitions for brass that I've seen before include "It's there, if muck's there" , "instrumental group" , "Nerve (but not of steel!)" , "Common alloy" , "Alloy; effrontery" .)