Answer:

biting

Answer	Crossword Clue
BITING	Harsh, as a wind
BITING	Caustic.
BITING	Sarcastic

BITING	Heavily satirical
BITING	Like a winter wind
BITING	Harsh, as winter winds
BITING	Sharply painful, as frigid weather
BITING	Acerb
BITING	Sharp
BITING	Like winter winds