Related Clues:

• Shade of gray
• Pinatubo product
• Silvery-gray
• Barbecue residue
• It may be gone in a flick
• Wood used for tool handles
• Type of tree
• It may be volcanic
• It comes before Wednesday once a year
• Fire proof?
• Corona's end
• Shade of blonde
• Stuff of bats
• It comes from the hearth
• Volcanic output