Some stores collectively fold perhaps (7)
I believe the answer is:
habitat
'fold perhaps' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'some stores collectively' is the wordplay.
I cannot really see how this works, but
'some' could be 'abit' (a bit ) and 'abit' is found in the answer.
The remaining letters 'hat' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for habitat that I've seen before include "home, naturally" , "Animal's natural home" , "Living area" , "Natural environment (of creature)" , "Territory" .)