Imitative artwork (8)
I believe the answer is:
pastiche
'imitative artwork' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pastiche that I've seen before include "Artistic work in someone else's style" , "Composition made of selections from various sources" , "Chap's tie (anag.)" , "Hepcats I found in composition from several sources" , "Imitative artistic work" .)