Plant Football Association around British Conservative (7)
I believe the answer is:
factory
'plant' is the definition.
'football association around british conservative' is the wordplay.
'football association' becomes 'FA' (abbreviation).
'around' becomes 'c' (abbreviation for 'circa').
'british conservative' becomes 'tory' (I've seen this in another clue).
'fa'+'c'+'tory'='FACTORY'
(Other definitions for factory that I've seen before include "mill" , "Place for production" , "Manufacturing plant" , "Building used for making or assembling items" , "Works" .)