Imitative piece of art (8)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
pastiche
(Other definitions for pastiche that I've seen before include "Imitative work of art" , "Work imitating various sources" , "Jumble" , "Mixture of styles and/or materials -- it's cheap (anag)" , "Imitative artwork" .)