Is a brave revolutionary harsh? (8)
I believe the answer is:
abrasive
'harsh?' is the definition.
(I've seen this before)
'is a brave revolutionary' is the wordplay.
'revolutionary' indicates anagramming the letters.
'is'+'a'+'brave'='isabrave'
'isabrave' with letters rearranged gives 'ABRASIVE'.
(Other definitions for abrasive that I've seen before include "(Of a character) confrontational or sharply disagreeable" , "Pumice, for example" , "Rough, irritating" , "Harsh in manner, capable of causing anger" , "Overly aggressive" .)