Related Clues:

• A man on board remains
• Word on either side of 'to'
• Campfire remnants
• Word before and after 'to,' in a religious phrase
• " ... ___, dust to dust"
• Grate things
• Remains of anything burnt
• Droppings from a butt
• Indication of some oxidation
• Remnants of a fire
• Pompeii's covering
• Campsite residue
• Poker targets?
• Result of fire, bum full of gas
• Grateful, maybe?