Revolutionary shifting cash in art (9)
I believe the answer is:
anarchist
'revolutionary' is the definition.
(thesaurus)
'shifting cash in art' is the wordplay.
'shifting' is an anagram indicator.
'cash'+'in'+'art'='cashinart'
'cashinart' is an anagram of 'ANARCHIST'.
(Other definitions for anarchist that I've seen before include "Troublemaker" , "One attacking authority" , "Opponent of government" , "Opposer of all governments" , "bolshevik" .)