Related Clues:

• Pipe contents, maybe
• Empty talk
• It can be hydrogenated
• Roadside sign
• Iraqi resource
• Talk idly
• Sunflower seed product
• Beachgoer's aid
• Energy source
• Driver's need
• Stove option
• Burn it by stepping on it
• Sesame product
• Windbag's output
• 'Mona Lisa,' for one