Related Clues:

• Like vinegar
• Like fluid in a battery
• Confection
• Like a Granny Smith apple
• Like vinegar or grapefruit juice
• Acrimonious
• Like vinaigrette
• Scathing
• Small fruit pie
• Having a kick
• Like lemon juice
• With a low pH
• Like sharp cheddar
• Like rhubarb
• Small pastry