Answer:

sour

Answer	Crossword Clue
SOUR	Lip-puckering
SOUR	Like lemons
SOUR	Sweet's counterpart

SOUR	Mixed drink with lemon or lime juice
SOUR	Whiskey drink
SOUR	In a foul mood
SOUR	Off-key
SOUR	Bad way to turn
SOUR	Cocktail order
SOUR	Sweet's partner
SOUR	Go bad

SOUR	Like unripe apples
SOUR	Causing the lips to pucker
SOUR	Skittles variety
SOUR	Like a lemon
SOUR	None too pleasant
SOUR	Whiskey ...
SOUR	Bar order
SOUR	Like a lime

SOUR	Grumpy
SOUR	Kind of grapes
SOUR	Become disenchanted
SOUR	Down (on)
SOUR	Whisky drink
SOUR	Tart
SOUR	Lemonlike