Revolutionary urge with several revolting (8)
I believe the answer is:
gruesome
'revolting' is the definition.
(thesaurus)
'revolutionary urge with several' is the wordplay.
'revolutionary' indicates anagramming the letters.
'with' is a charade indicator (letters next to each other).
'several' becomes 'some' (similar in meaning).
'urge' with letters rearranged gives 'grue'.
'grue'+'some'='GRUESOME'
(Other definitions for gruesome that I've seen before include "'Ghastly, grisly (8)'" , "Causing horror or repulsion" , "'Grisly, macabre (8)'" , "Go, resume being revolting or gruesome" , "Repulsive, horrid" .)