Nursing leg wound, one may shoot (10)
I believe the answer is:
gunslinger
'one may shoot' is the definition.
The definition suggests a singular noun which matches the answer.
'nursing leg wound' is the wordplay.
'wound' indicates anagramming the letters (wound can mean twisted or turned around).
'nursing'+'leg'='nursingleg'
'nursingleg' anagrammed gives 'GUNSLINGER'.
Can you help me to learn more?
(Other definitions for gunslinger that I've seen before include "Fighter" , "One with a hand weapon" , "shot by him?" , "Armed cowboy perhaps" , "Armed bandit" .)