| 100% | RING | 4 | Bell ___, loud chiming sound that signals the start or end of a round in boxing |
| 44% | OPENINGBELL | 11 | Sound that signals the start of trading, on a stock exchange |
| 42% | AFFIX | 5 | Add-on to the start or end of a word stem (as in 17-, 25-, 35-, 49- and 57-Across) |
| 41% | BUZZER | 6 | Loud noise that marks the end of a quarter or a game in basketball |
| 39% | BELL | 4 | Signal that ends a round, in boxing |
| 39% | TLDR | 4 | Acronym at the start or end of a wordy online post |
| 37% | BELL | 4 | Sound signaling the start and end of class |
| 36% | SWAT | 4 | End of a fly? ... or the start of one? |
| 35% | BELL | 4 | Sound that ends a boxing round |
| 34% | TRICKY | 6 | With 21-, 30-, 49-, 61- and 74-Across, end of a Carrie Bradshaw quote that starts "Men in their 40s are like the New York Times Sunday crossword puzzle ..." |
| 34% | HORN | 4 | Sound that signifies the end of a basketball game |
| 34% | BELL | 4 | Signal that ends a boxing round |
| 32% | BABYTOY | 7 | A set of blocks . . . or the box they came in, perhaps |
| 32% | GENRE | 5 | What the start of 17-, 29-, 45- or 61-Across is, in a bookstore |
| 32% | ALPHA | 5 | Start or end of the Greek spelling of "Athena" |
| 31% | ONETWOTHREEFOUR | 15 | Start of a count ... or the letter frequencies in 17-, 30-, 46- and 64-Across |
| 31% | HORN | 4 | Sound heard at the end of a period during basketball or hockey games |
| 31% | AMEND | 5 | Modify, as the Constitution... or a word that ends in "end" |
| 31% | KEEPER | 6 | Small piece that holds the end of a belt in place |
| 31% | PUNCHESTHECLOCK | 15 | Starts or ends a day of drudgery |
| 31% | AYE | 3 | Word that sounds like a letter of the alphabet that's not in it |
| 31% | ANTHILL | 7 | End of a line in the sand, maybe |
| 30% | INSTANT | 7 | ___ replay, quick video clip of a play that's broadcasted, and a popular break-time sight in the NBA or MLB |
| 30% | SOMETHINGWICKED | 15 | Start of a Ray Bradbury title ... or a hint to the ends of 17-, 26-, 49- and 62-Across |
| 30% | YOURATTENTIONPLEASE | 19 | Start of an announcement ... or a hint to what's hidden in the answers to the six starred clues |
| 30% | EMPTY | 5 | Containing nothing, or a word that sounds like the initials of the answers to the starred clues |
| 30% | BRAINSTORM | 10 | Session with a volley of ideas, or word that starts with the body's grey matter part |
| 30% | DRAW | 4 | Start of a tournament ... or the end of a match? |
| 30% | ONE | 3 | (5/5) End of a New Year's countdown...or the number that follows 31 on the calendar |
| 30% | GIMBAL | 6 | Arrangement of pivoting rings that keeps navigation instruments in a horizontal position at sea or in the air |