Related Clues:

• Club soda fillip
• Vitamin C source
• Lemon go-with
• Whitewash ingredient
• Gardener's purchase
• Margarita garnish
• Green shade
• Heavy-duty cleanser
• Margarita fruit
• Citrus fruit
• Shade of green
• Soapmaker's solution
• Caustic
• Welles's 'The Third Man' role
• High-pH substance