Crossword clues for the word: KNEWBEST The word KNEWBEST has appeared as an answer to at least 2 crossword clues on different crossword puzzles. Crossword clues for KNEWBEST Showing 1 to 2 of 2 results Clue(s) Emulated a '50s TV father? What a TV father played by Robert Young did in a '50s sitcom