Firm to work in hutch (4)
I believe the answer is:
coop
'hutch' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'firm to work' is the wordplay.
'firm' becomes 'co' (a firm is a company).
'to work' becomes 'op' (abbreviation for opus).
'co'+'op'='COOP'
'in' is the link.
Can you help me to learn more?
(Other definitions for coop that I've seen before include "Store" , "Birdcage" , "Cage for poultry" , "pound" , "Hens in this" .)