Fish put down for chippy (9)
I believe the answer is:
carpenter
'chippy' is the definition.
(I've seen this before)
'fish put down' is the wordplay.
'fish' becomes 'carp' (carp is a kind of fish**).
'put down' becomes 'enter' ('enter' can be a synonym of 'put down').
'carp'+'enter'='CARPENTER'
'for' acts as a link.
(Other definitions for carpenter that I've seen before include "Joseph's occupation" , "Walrus' companion" , "artisan" , "chips?" , "tradesman" .)