The answer to the New York Times crossword clue "Fancify … or a phonetic hint to 17-, 23-, 50- and 62-Across" is "ZHUZH UP." This clue was seen in the September 3, 2025 NYT crossword puzzle. "Zhuzh up" means to make something more attractive or lively, fitting the meaning of "fancify" and serving as a phonetic hint for several themed entries in that puzzle.