Arrogant, shameless (8)
I believe the answer is:
immodest
I believe this is a double definition.
'arrogant' is the first definition.
(thesaurus)
'shameless' is the second definition.
(I've seen this in another clue)
(Other definitions for immodest that I've seen before include "rude" , "Swift proposal was not" , "Lacking due decency" , "Indecent or shameless, perhaps in dress" , "Offending against sexual mores in appearance" .)