Sword wounded girl (7)
I believe the answer is:
cutlass
'sword' is the definition.
(I've seen this before)
'wounded girl' is the wordplay.
'wounded' becomes 'cut' (I've seen this before).
'girl' becomes 'lass' (lass is a kind of girl).
'cut'+'lass'='CUTLASS'
(Other definitions for cutlass that I've seen before include "Pirate's sword" , "Pirate's weapon" , "Short, broad-bladed sword" , "Sailor's blade" , "Curved, one-edged sword" .)