Related Clues:

• Remains
• Etna output
• ___ lamp
• Chimney output
• Grayish
• Wood for a 61-Down
• Smelting waste
• Hot flick?
• 'Red' or 'white' tree
• Smelt residue
• Grate stuff
• It may be found in a cone
• Fire sign
• Olive kin
• Smelter's waste