Related Clues:

• Road surface
• Cigarette component
• Pothole filler
• Road goop
• Road material
• Pit goo
• Salt, so to speak
• Roof goo
• It may go on a drive
• Waterproofing material
• Petroleum residue
• It may hold feathers in place
• It's in the pits
• Do road work?
• Coal byproduct