A nut? We return, after the money (6)
I believe the answer is:
cashew
'a nut?' is the definition.
(I know that cashew is a type of nut)
'we return after the money' is the wordplay.
'return' says the letters should be written in reverse.
'after' is a charade indicator (letters next to each other).
'the money' becomes 'cash' (cash is a type of money).
'we' written backwards gives 'ew'.
'ew' after 'cash' is 'CASHEW'.
(Other definitions for cashew that I've seen before include "Kind of nut" , "Acajou" , "Kidney shaped nut" , "Chew as you would this nut" , "Kidney-shaped nut of tropical tree" .)