What is referred to by 'clear or easily understood'?

What is associated with: cleanliness is next to fordliness is a line from this 1932 novel? What is referred to by 'cleanliness is next to'? What is associated with: cleanup of this pennsylvania nuclear power plant following the 1979 meltdown didnt end until 1… Based on the clue 'clear transparent last name of astronaut shannon ...', what is the answer? Based on the clue 'clear soup made from boiling meat or bones', what is the answer? Based on the clue 'clear the zone stay out of the crease when trying ...', what is the answer? What is referred to by 'clear water wisconsin'? What is associated with: cleared under daniel boones direction in 1775 the wilderness road passed through this famous g…