Venetian artist (6)
I believe the answer is:
titian
'venetian artist' is the definition.
(painter and member of the Venetian school)
This is all the clue.
(Other definitions for titian that I've seen before include "Sixteenth century Venetian painter" , "(Of hair) bright golden auburn; painter" , "Italian painter; hair colour" , "Venetian fifteenth-sixteenth century painter" , "Sixteenth cenntury Italian painter" .)