Crossword Genius

Sailor’s weapon injured girl (7)

Ross

I believe the answer is:

cutlass

I'm a little stuck... Click here to teach me more about this clue!

'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" .)

I've seen this clue in The Hindu.
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