Appeared unwise to join army in the end, not wanting to be shot (6-3)
I believe the answer is:
camera-shy
'not wanting to be shot' is the definition.
'appeared unwise to join army in the end' is the wordplay.
'appeared' becomes 'came' (I've seen this before).
'unwise' becomes 'rash'.
'to join' says to put letters next to each other.
'in the end' says to take the final letters.
The final letter of 'army' is 'y'.
'came'+'rash'+'y'='CAMERA-SHY'
(Other definitions for camera-shy that I've seen before include "Afraid of the lens" , "Chaser may be apprehensive of having photo taken - bashful?" , "Unwilling to be photographed" , "Reluctant to be photographed" .)