What is referred to by 'clarksdale oxford natchez'?

Based on the clue 'clark gable was happy to see him come in finish d...', what is the answer? What is associated with: clark gables short but happy marriage to this actress ended with her death in a 1942 plane cra… Based on the clue 'clark mills statue of this us president stands in ...', what is the answer? Which performer is associated with 'clark'? Based on the clue 'class a doors have a 3 hour rating for enduring th...', what is the answer? Based on the clue 'class of a pro boxer topping out at 160 pounds', what is the answer? Based on the clue 'class of crime more serious than a misdemeanor wit...', what is the answer? Based on the clue 'class of instruments to which the flute belongs', what is the answer?