Woman in army shot (4)
I believe the answer is:
mary
'woman' is the definition.
(woman's name)
'army shot' is the wordplay.
'shot' indicates anagramming the letters.
'army' is an anagram of 'MARY'.
'in' acts as a link.
(Other definitions for mary that I've seen before include "-- Queen of Scots" , "See 2" , "could be Wesley" , "a religious icon" , "Person venerated by Christians" .)