Related Clues:

• It's from the hearth
• Burning issue
• Bonfire residue
• Cigar crap
• Pile at a campground
• Butt end
• Wood for oars
• Grayish powder
• Residue
• Wood
• Cigarette detritus
• Vesuvius debris
• Baseball-bat wood
• Stomped-out cig leftovers
• Wood for bats