Snapper turned up with artist (6)
I believe the answer is:
camera
'snapper' is the definition.
(I've seen this before)
'turned up with artist' is the wordplay.
'turned up' becomes 'came' (I've seen this in another clue).
'with' says to put letters next to each other.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'came'+'ra'='CAMERA'
(Other definitions for camera that I've seen before include "Image recording apparatus" , "Source of pictures" , "Photographic equipment" , "Brownie maybe" , "source of shots?" .)