Related Clues:

• Roadside sign
• Soil enricher
• Talk idly
• Swamp substance
• Energy source
• Vegetable matter used as fuel
• Driver's need
• Stove option
• Burn it by stepping on it
• Windbag's output
• Balloon contents
• Petrol
• Fertilizer choice
• Filling-station supply
• Bombas-tic talk