Answer:

sharper

Answer	Crossword Clue
SHARPER	More distinct
SHARPER	Swindler
SHARPER	Less dull

SHARPER	More brainy
SHARPER	Not as vague
SHARPER	More honed
SHARPER	More astute
SHARPER	Cheat at cards
SHARPER	Confidence man.
SHARPER	Trickster.
SHARPER	More pungent.

SHARPER	Gamester of a kind.
SHARPER	Riverboat cardplayer
SHARPER	Less obtuse
SHARPER	More acute
SHARPER	Expert gambler
SHARPER	What festival photogs want their pics to be
SHARPER	More spiffy
SHARPER	More on the ball