Shares buildings with squirrels (10)
I believe the answer is:
stockpiles
'squirrels' is the definition.
Although both the answer and definition are plural nouns, I don't understand how they can define each other.
'shares buildings' is the wordplay.
'shares' becomes 'stock'.
'buildings' becomes 'piles' (I can't explain this - if you can you should believe this answer much more).
'stock'+'piles'='STOCKPILES'
'with' acts as a link.
Can you help me to learn more?
(Other definitions for stockpiles that I've seen before include "Hoards" , "Gathers commodities" .)