Related Clues:

• Paving gunk
• Smoke solid
• Bonfire speck
• Finish (a parking lot)
• Driveway covering
• A grate build-up
• Close-grained wood
• It's a grate thing
• North Carolina river
• It's all over the streets
• Sailor, slangily
• La Brea stuff
• Roofing supply
• Road surface
• Old seaman