Show off shamelessly (6)
I believe the answer is:
flaunt
'show off shamelessly' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for flaunt that I've seen before include "Display proudly" , "Expose ostentatiously" , "Show proudly, provocatively" , "Show off, brandish" , "Display very publicly" .)