Answer:

skeptic

Answer	Crossword Clue
SKEPTIC	One looking askance
SKEPTIC	One who's tough to sell
SKEPTIC	Doubting Thomas

SKEPTIC	Doubter
SKEPTIC	Pyrrho, for one
SKEPTIC	Unbeliever
SKEPTIC	Person "from Missouri."
SKEPTIC	Somebody from Missouri.
SKEPTIC	Legendary Missourian.
SKEPTIC	Incredulous one.
SKEPTIC	Freethinker

SKEPTIC	"Show me" type
SKEPTIC	Pyrrho, notably
SKEPTIC	Questioning sort
SKEPTIC	Thomas, for one
SKEPTIC	Nonbeliever

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.