Based on the clue 'a robert frost poem begins the witch that came the...', 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 road surface such as asphalt', 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 robinsonade an adventure thats often about a mar...', what is the answer? Based on the clue 'a robot that can act independently is this type wh...', what is the answer? Based on the clue 'a rock roll president eagle not elvis as rumored', what is the answer? Based on the clue 'a rock called pridotite produces this hardest gem', what is the answer?