Answer: mountebank

AnswerCrossword Clue
MOUNTEBANK

Impostor

MOUNTEBANK

Friend of a fourflusher.

MOUNTEBANK

Charlatan.

MOUNTEBANK
Tricky pitchman.
MOUNTEBANK
Feature of old-time medicine show.
MOUNTEBANKQuack.
MOUNTEBANKQuack
MOUNTEBANKCharlatan