| 100% | COMET | 5 | Source of the meteors in a meteor shower |
| 62% | BEETS | 5 | Source of the "blood" in a meatless burger, maybe |
| 60% | ROTC | 4 | Source of a deferment in the 1960s draft |
| 60% | PHONE | 5 | Source of a light in the darkness, perhaps |
| 58% | MIHRAB | 6 | Alcove in a mosque showing the direction of Mecca |
| 58% | TEXTBOOKS | 9 | The sources of information in a course |
| 57% | TOASTER | 7 | Source of a burning smell in the kitchen, maybe |
| 57% | LOTUSTREE | 9 | Source of a sleep-inducing narcotic in the "Odyssey" |
| 57% | LEONID | 6 | Meteor in a meteor shower |
| 57% | ARC | 3 | Path of a meteor in the sky |
| 56% | YEW | 3 | Tree that was the source of the poison in Christie's A Pocket Full of Rye |
| 56% | METEOR | 6 | Part of a hot shower in the sky |
| 55% | STARRING | 8 | Word in the opening credits of a TV show |
| 54% | LAKE | 4 | ___ Victoria, waterbody in the Tanzanian and Ugandan forests that is a source of the Nile |
| 54% | TAP | 3 | Source of beer on a keg or source of water in the kitchen |
| 54% | COD | 3 | The oil in its liver is a source of omega-3 fatty acids |
| 53% | RADIX | 5 | The main source; number in the base of a system |
| 53% | IDEA | 4 | A sudden spark of inspiration, shown as a light bulb above the head in cartoons |
| 52% | XRAYDIFFRACTION | 15 | Process showing the structure of a crystal, in physics |
| 52% | PSALMS | 6 | Source of the quote in 6-Across |
| 52% | BEET | 4 | Source of the pink in pickled turnips |
| 52% | STAR | 4 | The lead in a TV show, say |
| 52% | SOY | 3 | Source of the protein in an Impossible Burger |
| 52% | KRESGE | 6 | Source of the "K" in Kmart |
| 52% | DEAL | 4 | Word that appears twice in the name of a game show hosted by Howie Mandel |
| 51% | ABBA | 4 | Source of the music for a 2001 theatrical hit |
| 51% | BRAZZOS | 7 | Fictional action show within a show starring Charles Hayden-Savage of "Only Murders in the Building" |
| 51% | GUAYULE | 7 | Bushy shrub in the aster family of Mexico and the southwestern US; a source of latex |
| 51% | CAST | 4 | All of the performers in a movie |
| 51% | GIN | 3 | One of the ingredients in a Martini |