Related Clues:

• Cigar byproduct
• Camel by-product
• Flicker's bit
• Camel droppings?
• Chimney residue
• Bone china component
• Lenten symbol of penitence
• Fire leftovers
• Bat wood, typically
• Eruption particle
• Mount St. Helens output
• Burning coal
• Fire product
• Tray filler
• Volcanic residue