Related Clues:

• Roof surface, perhaps
• Sea rover
• Yucky muck
• Popeye, for one
• Subject of a cigarette rating
• Over-the-road item?
• Slangy sailor
• Driveway sealer
• Petroleum product
• Cigarette-ad word
• Sailor, sometimes
• Fix the road, maybe
• Moo __ gai pan
• Crude oil, e.g.
• Roof material