Related Clues:

• Coal byproduct
• Two-lane topper, often
• Chantey chanter
• Work on the road
• What a steamroller steamrolls
• Veteran mariner
• Prepare for feathering
• It can cover a lot
• Roof surface, perhaps
• Sea rover
• Popeye, for one
• Subject of a cigarette rating
• Over-the-road item?
• Slangy sailor
• Petroleum product