Related Clues:

• Heat source
• Cone material
• Certain cartel's concern
• Well-supplied resource?
• Barrel contents
• Stromboli outpour
• Output of Mount Etna
• Peanut product
• Obsidian, once
• Black gold
• Engine lubricant
• Driller's quest
• Etna outpouring
• Kilauea flow
• Anointing substance