Answer: tarter

AnswerCrossword Clue
TARTERMore acidulous
tarterTART, having a sharp, sour taste
tartersour; acid
tartersharp in manner or expression
TARTERMore caustic
TARTERMore tangy
TARTERWith a sharper taste
TARTERMore sharp
TARTERMore snappish
TARTERNot as sweet, maybe
TARTERMore sour
TARTERSharper tasting.
TARTERMore acidulous.
TARTERMore like lemons
TARTERMore lemony
TARTERComparatively caustic
TARTERSharper-tasting