Brazen criminal hassles me (9)
I believe the answer is:
shameless
'brazen' is the definition.
(I've seen this in another clue)
'criminal hassles me' is the wordplay.
'criminal' indicates an anagram.
'hassles'+'me'='hasslesme'
'hasslesme' with letters rearranged gives 'SHAMELESS'.
(Other definitions for shameless that I've seen before include "Barefaced, unabashed" , "Brazenly showing no regret" , "Immodest; brazen" , "Quite brazen" .)