Related Clues:

• Like a Granny Smith apple
• Biting, as criticism
• Acrimonious
• Like vinaigrette
• Skittles variety
• Small fruit pie
• Like lemon juice
• Become bitter
• Like grapefruit juice
• Like rhubarb
• Like some Gummi Bears
• Small pastry
• Embittered
• Making the mouth pucker, say
• Sharp on the tongue