Related Clues:

• Roof goo
• It may go on a drive
• Waterproofing material
• Big bunch
• Petroleum residue
• It may hold feathers in place
• Windjammer
• It's in the pits
• Do road work?
• Whipped cream unit
• Coal byproduct
• Two-lane topper, often
• Chantey chanter
• Work on the road
• What a steamroller steamrolls