Related Clues:

• Block attachment?
• Burger partner
• Roadside stand offering
• Fruit-juice alternative
• Drink with a bottle cap
• Summer citrus drink
• Ending on lime
• Lime ending
• Suffix with many fruit names
• Dark quaff
• Stock add-on
• Teetotaler's choice, perhaps
• Ballpark drink
• Soft-drink choice
• Author inspired by Twain