Football club? (11)
I believe the answer is:
association
This clue is a double definition.
'football' is the first definition.
(association football is a kind of football)
'club?' is the second definition.
(I know that club can be written as association)
(Other definitions for association that I've seen before include "Bond" , "Corporation" , "League" , "Company" , "Conceptual connection" .)