Related Clues:

• Root beer, for instance
• Pepsi or Coke
• Word with ''water'' or ''fountain''
• Output of some fountains
• Pop, elsewhere
• Gin fizz ingredient
• Scotch and __ (bar order)
• Scotch diluter
• Carbonated water
• Popular mixer
• Fizzy fountain fare
• Coke, e.g.
• Fast-food order
• Ice-cream concoction
• 16-Across, e.g.