Sailor’s weapon injured girl (7)
I believe the answer is:
cutlass
'sailor's weapon' is the definition.
'cutlass' can be an answer for 'weapon' (cutlass is a kind of weapon). I am unsure of the 'sailor's' bit.
'injured girl' is the wordplay.
'injured' becomes 'cut' (similar in meaning).
'girl' becomes 'lass' (lass is a kind of girl).
'cut'+'lass'='CUTLASS'
Can you help me to learn more?
(Other definitions for cutlass that I've seen before include "Short broad sword" , "Short, broad-bladed sword" , "Pirate's sword" , "Sharp weapon" , "Steel" .)