Related Clues:

• Sandwich side
• See 43-Across
• What 7-Up isn't
• Brown beverage
• 7-Up it isn't
• Drink with fast food
• Fast-food staple
• Natural gas, for one
• With 13-Down, they may include taste tests
• It keeps the Tempo going?
• Burger and fries go-with
• Float's base, maybe
• Bubbly mixer
• It may be decaffeinated
• Fizzy quaff