Brownie perhaps arrived with artist (6)
I believe the answer is:
camera
'brownie perhaps' is the definition.
(Brownie is a brand of camera)
'arrived with artist' is the wordplay.
'arrived' becomes 'came' (come can mean to appear or arrive).
'with' means one lot of letters go next to another.
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'came'+'ra'='CAMERA'
(Other definitions for camera that I've seen before include "Source of pictures" , "Device for taking photos" , "Optical recorder" , "A court held in it is not open to the public" , "Photographic instrument" .)