Answer: fadiman

AnswerCrossword Clue
FADIMANLiterary critic Clifton
FADIMANHe stumps the experts.
FADIMANHe knows all the answers on "Information Please."
FADIMANM. C. of "This Is Broadway."
FADIMANCritic, author, TV emcee.
FADIMAN"Party of One" author.