| 100% | TISSUEDONOR | 11 | One party in a cornea transplant, say |
| 50% | DARE | 4 | One choice in a party game |
| 48% | ENTRANT | 7 | One in a 1K, say |
| 46% | LITIGANT | 8 | One of the parties in a lawsuit |
| 46% | BREEDER | 7 | One with a stake in 48-Across, say |
| 46% | ODD | 3 | Peculiar one in a group, say |
| 45% | ELDER | 5 | One starting a story "Back in my day ...," say |
| 44% | MALADYLUCK | 10 | Getting over a cold in one day, say? |
| 44% | BINGE | 5 | Watch a whole series in one night, say |
| 44% | BINGE | 5 | Watch a whole season in one sitting, say |
| 44% | BINGEWATCH | 10 | View a whole season of in one day, say |
| 43% | PIECE | 5 | One of 500 in a jigsaw puzzle, say |
| 43% | LITIGANT | 8 | Party in a lawsuit |
| 42% | LITIGANTS | 9 | Parties in a suit |
| 42% | CRAM | 4 | Do a semester's worth of studying in one night, say |
| 42% | BINGE | 5 | Watch a season's worth of episodes in one sitting, say |
| 42% | ESAU | 4 | Party in a biblical swindle |
| 42% | DOUBLED*PPERS | 13 | Ones committing a party foul ... or the images depicted in this puzzle's grid? |
| 42% | STATES | 6 | Parties in a historical union |
| 41% | ADMIN | 5 | One in charge of a Web forum, say (Abbr.) |
| 41% | PLUSONE | 7 | Partner one brings to a party, say: Hyph. |
| 41% | RIFLER | 6 | One going through papers in a safe, say |
| 41% | STRAGGLER | 9 | One finishing a marathon in eight hours, say |
| 41% | SPRINGVACATION | 14 | A couple weeks off partying in Florida, say |
| 41% | TAXES | 5 | One of two certainties, in a saying |
| 41% | TURKS | 5 | One party in the Crimean War |
| 41% | RESP | 4 | Party in a legal proceeding: Abbr. |
| 41% | CITICORP | 8 | Party in a 1998 merger with Travelers |
| 40% | RAVE | 4 | Dance party in a warehouse |
| 40% | ACT | 3 | Do one's part in a play, say |