| 100% | YEAGER | 6 | Chuck, first pilot to break the sound barrier |
| 74% | YEAGER | 6 | He was the first to break the sound barrier, Chuck |
| 74% | CHUCK | 5 | US pilot Yeager, first to break the sound barrier |
| 63% | WHIP | 4 | First object made by humans to break the sound barrier |
| 56% | YEAGER | 6 | Chuck who broke the sound barrier |
| 55% | CHUCKYEAGER | 11 | First pilot to travel faster than the speed of sound |
| 48% | SONICBOOM | 9 | Noise heard when breaking the sound barrier |
| 47% | SST | 3 | It's not breaking the sound barrier anymore |
| 47% | CONCORDE | 8 | Supersonic plane, broke the sound barrier in 1969 |
| 45% | SPEEDIEST | 9 | First to break the tape |
| 45% | SONICBOOM | 9 | Sound of an aircraft breaking the sound barrier |
| 45% | SONICBOOM | 9 | Explosion heard when the sound barrier is broken |
| 44% | BOOM | 4 | Sound made when breaking the sound barrier |
| 43% | THRUST | 6 | — SSC, car driven by Andy Green that broke the sound barrier on land in 1997 |
| 41% | KRONFELD | 8 | Robert —, Austria-born sailplane designer; first pilot to fly a glider across the English Channel |
| 37% | IHATE | 5 | "___ to break the news ..." |
| 37% | YEAGER | 6 | First pilot to exceed Mach 1 |
| 37% | BARRIER | 7 | Breaking the Sound __, 1952 British film |
| 36% | SUBSONIC | 8 | Speed beneath the sound barrier |
| 36% | SHY | 3 | Unlikely to break the ice |
| 36% | HATE | 4 | "I ___ to break the news..." |
| 36% | ABETS | 5 | Helps to break the law |
| 36% | GENTLY | 6 | One way to break the news |
| 36% | SHY | 3 | Unlikely to break the ice, say |
| 36% | YEAGER | 6 | Sound barrier breaker Chuck |
| 36% | SCAMS | 5 | Con jobs, or, when broken after its first letter, a hint to the starred answers |
| 36% | INFORM | 6 | Break the news to |
| 35% | TOLD | 4 | Broke the news to |
| 35% | PHILLIES | 8 | Pennsylvania baseball team that sent future Hall of Famer Chuck Klein to the first 28-Across |
| 35% | HOE | 3 | Gardening aid used to break the ground |