“"Once ___ a time …"” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.UPON is the answer to the New York Times crossword clue “"Once ___ a time …"”. It was last seen in the puzzle of January 20, 2025, where it runs at 6 Down and fills 4 squares. It crosses 4 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have. This exact clue has run 2 times in NYT puzzles, first on January 20, 2025.