Go over revolutionary art and poetry (8)
I believe the answer is:
traverse
'go over' is the definition.
(thesaurus)
'revolutionary art and poetry' is the wordplay.
'revolutionary' shows that the letters should be reversed in order (letters revolve around).
'and' means one lot of letters go next to another.
'poetry' becomes 'verse' (synonyms).
'art' reversed gives 'tra'.
'tra'+'verse'='TRAVERSE'
(Other definitions for traverse that I've seen before include "get across" , "In mountaineering, a steep slope to be crossed from side to side" , "Ski diagonally across (a slope)" , "Go across" , "Move across" .)