1) Bennett Cerf was one 2) Cause of groans 3) Crossword writer, often 4) Edgar Nye for one 5) Groan inducer 6) Groan-inducing humorist 7) Humorist 8) Humourist 9) Joker 10) Ogden nash, notably 11) One skilled at wordplay 12) Perpetrator of paronomasia 13) Practicer of a form of wit 14) Witty word whiz Found on https://www.crosswordclues.com/clue/punster