Guns raised for quarry in glen? (4)
I believe the answer is:
stag
'quarry in glen?' is the definition.
(might be hunted in a glen)
'guns raised' is the wordplay.
'guns' becomes 'gats' (gat is a kind of gun).
'raised' is a reversal indicator.
'gats' in reverse letter order is 'STAG'.
'for' is the link.
(Other definitions for stag that I've seen before include "Sort of party" , "Game - speculator" , "Investor" , "Unaccompanied man at party" , "one may get in a rut" .)