Related Clues:

• Like lemonade sans sugar
• Basic opposite
• Tart to the taste
• Like orange juice
• Like sourballs
• Like crab apples
• Like citrus juices
• Very harsh
• Like lemonade
• Causing the lips to pucker
• Like unripe apples
• Sharp to the taste
• Jam-filled pastry
• Sharp in manner, biting
• The pastry sounds bitter