Related Clues:

• Hardwood
• Refuse
• Hackberry's cousin
• Slippery ___
• Rowan, e.g.
• Poplar variety
• Volcano detritus
• Sturdy furniture material
• Common street name
• Pin ___
• Hearth residue
• Grateful?
• Flue residue
• Cigarette waste
• Durable wood