Shop to develop snaps (6)
I believe the answer is:
photos
'snaps' is the definition.
(I've seen this in another clue)
'shop to develop' is the wordplay.
'develop' is an anagram indicator.
'shop'+'to'='shopto'
'shopto' is an anagram of 'PHOTOS'.
(Other definitions for photos that I've seen before include "prints" , "Shots" , "In brief, snapshots" , "snaps" , "Camera pictures" .)