Store for bran, possibly (4)
I believe the answer is:
barn
'store' 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?
'bran possibly' is the wordplay.
'possibly' indicates an anagram.
'bran' is an anagram of 'BARN'.
'for' is the link.
Can you help me to learn more?
(Other definitions for barn that I've seen before include "Big building" , "Large farm building" , "Farm storehouse" , "Type of dance or owl" , "Bran stored in farm shed" .)