Related Clues:

• Krypton, e.g.
• Salad dressing ingredient
• Cooking staple
• Deep-frying need
• Accelerator
• Service station offering
• Lubricate
• Guff
• Getty product
• Tanker's cargo
• Step on it
• Tire fill
• Van Gogh's 'Irises,' e.g.
• Prattle
• It may be natural