Comfortable seeing weapons returned (4)
I believe the answer is:
snug
'comfortable' is the definition.
(similar in meaning)
'weapons returned' is the wordplay.
'weapons' becomes 'guns' (gun is a kind of weapon).
'returned' is a reversal indicator.
'guns' backwards is 'SNUG'.
'seeing' is the link.
(Other definitions for snug that I've seen before include "Cosy retreat" , "joiner" , "Comfy and cosy like bug in rug" , "Bar parlour - comfortably placed" , "Warm and cosy" .)