Answer: swanks

AnswerCrossword Clue
SWANKSActs in a showy manner: Slang.
SWANKSDisplays ostentatiously
SWANKSShows off
swanksDisplay one's wealth, knowledge, or achievements in a way that is intended to impress others
swanksSWANK, to swagger (to walk with a pompous air)