Exaggerate mounting neighbourhood revolt to some extent (6)
I believe the answer is:
overdo
'exaggerate' is the definition.
(synonyms)
'mounting neighbourhood revolt to some extent' is the wordplay.
'mounting' is a reversal indicator (in a down clue, letters mount or go up).
'to some extent' says the answer is hidden in the clue.
'odrevo' can be found hidden inside 'neighbourhood revolt'.
'odrevo' backwards is 'OVERDO'.
(Other definitions for overdo that I've seen before include "Be excessive, perhaps in cooking food" , "Exaggerate; use too much of" , "Put too much effort into" , "Work too much" , "Cook too long or act excessively" .)