Answer:

baffle

AnswerCrossword Clue
BAFFLEPresent a poser to
BAFFLEPerplex
BAFFLEConfuse
BAFFLEDiscombobulate
BAFFLEDeflecting screen
BAFFLEStump
BAFFLEStymie
BAFFLEPuzzle
BAFFLEFoil or check.
BAFFLEFrustrate.
BAFFLEStump.
BAFFLEConfound.
BAFFLEConfound
BAFFLENonplus
BAFFLEBewilder
BAFFLEThwart
BAFFLECause to be stuck
BAFFLEMystify
BAFFLEKeep hitters off balance, e.g.