Possible Clues:

• Find it in corn, soup and one of the ingredients for lemonade
• Nice lemon in tonic, mixed right inside
• Car lacks energy? It may give one a bitter experience
• Fruit ice with wrong coatings removed
• Fruit and wine consumed by two-thirds of withered old women
• Fruit historically used for medicinal purposes
• Large lemonlike fruit
• Splash tonic over recipe for making lemonade
• Grapefruit ancestor
• Large, lemonlike fruit