Football team’s magazine (7)
I believe the answer is:
arsenal
I believe this is a double definition.
'football team's' is the first definition.
(Arsenal football club)
'magazine' is the second definition.
(both can mean an ammunition store)
(Other definitions for arsenal that I've seen before include "Store of weaponry" , "Armoury - London football club" , "Eleven" , "First FA Cup winners" , "Where the guns are and who are The Gunners are" .)