Based on the clue 'a plan you have just in case', what is the answer?

Based on the clue 'a plain knitted fabric or a pullover shirt that ma...', what is the answer? Based on the clue 'a plain old miller usually means one whose mill gr...', what is the answer? Based on the clue 'a plain woven fabric of jute or hemp', what is the answer? Based on the clue 'a plan or diagram used for making a dress', what is the answer? Based on the clue 'a plane crashes people die though it doesnt slow s...', what is the answer? Based on the clue 'a plane figure of seven sides seven angles', what is the answer? Based on the clue 'a plane flying at supersonic speed catches up to i...', what is the answer? Based on the clue 'a plane turned away from landing at an airport ci...', what is the answer?