Related Clues:

• Acidic, sharp, sour
• Dessert, sharp to the taste
• *Roofing goop
• 2 Down open pie
• Pastry case with a sweet or savoury filling
• Butter ___ (small pastry)
• Bitter found to have no head
• Bitter – sweet, possibly
• Like many a lemon-flavored dessert
• Like sour lemons
• Like limes and kumquats
• Mouth-squinching