A soccer club magazine (7)
I believe the answer is:
arsenal
This could be a double definition.
'a soccer club' is the first definition.
'arsenal' can be an answer for 'club' (I've seen this before). I am not certain of the 'a soccer' bit.
'magazine' is the second definition.
(both can mean an ammunition store)
Can you help me to learn more?
(Other definitions for arsenal that I've seen before include "Store of guns and ammunition" , "A military store of guns and armaments" , "Ammo store" , "Football club based at Emirates Stadium" , "English football club and military depot" .)