Based on the clue 'a road surface such as asphalt', what is the answer?

Based on the clue 'a riverboat captain bogart a missionary hepburn u...', what is the answer? Based on the clue 'a road scholar is retired on this coasting until a...', what is the answer? Based on the clue 'a road sign inspired the name of this band from th...', what is the answer? Based on the clue 'a road sign showing the back of a car with two wav...', what is the answer? Based on the clue 'a robbery at gunpoint or an adhesive air freshener', what is the answer? Based on the clue 'a robert frost poem begins something there is that...', what is the answer? Based on the clue 'a robert frost poem begins the witch that came the...', what is the answer? Based on the clue 'a robinsonade an adventure thats often about a mar...', what is the answer?