Related Clues:

• Contract's escalator clause, for short
• Elixir
• Gin's go-with
• Carbonated beverage
• Sandwich side
• See 43-Across
• Mixer of a sort
• What 7-Up isn't
• Stimulus
• Brown beverage
• 7-Up it isn't
• Drink with fast food
• Fast-food staple
• With 13-Down, they may include taste tests
• Burger and fries go-with