High-handed (8)
'high-handed' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for arrogant that I've seen before include "Getting backs up" , "Conceited, self-important" , "Having an exaggerated sense of one's own importance" , "Over-cocky" , "Overly self-important" .)
'high-handed' is the definition.
(I know that high-handed can be written as cavalier)
This is all the clue.
(Other definitions for cavalier that I've seen before include "Supercilious - old Royalist" , "Roundhead's adversary" , "Offhand; a gallant" , "oblivious to consequences" , "Supporter of Charles I; lacking proper concern" .)