Shameless and bold (6)
I believe the answer is:
brazen
'shameless and bold' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for brazen that I've seen before include "Insolent, barefaced" , "Forward" , "Boldly impudent" , "Shameless (impudence)" , "Shameless and bold - resembling brass" .)