Related Clues:

• Hardwood
• Refuse
• Rowan, e.g.
• Volcano detritus
• Hearth residue
• Grateful?
• Flue residue
• Cigarette waste
• Shade tree
• Durable wood
• Grate expectations?
• Soda ___
• It goes 'pssst!'
• Object of E.P.A. monitoring
• Furniture wood