Weaponry for our army, possibly (7)
I believe the answer is:
armoury
'weaponry' is the definition.
(armoury is a kind of weaponry)
'our army possibly' is the wordplay.
'possibly' indicates anagramming the letters.
'our'+'army'='ourarmy'
'ourarmy' with letters rearranged gives 'ARMOURY'.
'for' is the link.
(Other definitions for armoury that I've seen before include "Ordnance depot" , "Gun store" , "Arsenal - magazine" , "Means" , "Where weapons are kept" .)