Related Clues:

• Glower?
• Fiery fragment
• Puzzling question
• Glower on the hearth
• Certain brainteaser
• Hot glower
• "When is a door not a door?," e.g.
• Fireplace minutia
• Fireplace tidbit
• Cookout leftover
• Grill bit
• Hot item
• It doesn't have an obvious answer
• The Sphinx had a famous one
• Particle of a dwindling campfire