| Clubs of the Middle Ages | 24 |
| Clubs of old | 12 |
| Clubbing weapons | 16 |
| Causes to tear up, perhaps | 26 |
| Assaults with a spray | 21 |
| Anti-mugger sprays | 18 |
| Virile | 6 |
| Speed-of-sound ratio | 20 |
| Speed ratio | 11 |
| Speed of sound | 14 |
| Jet speed unit | 14 |
| Supersonic unit | 15 |
| Speed-of-sound number | 21 |
| Speed of sound number | 21 |
| Jet speed | 9 |
| The speed of sound | 18 |
| Sound-speed number | 18 |
| Ratio of fast flight | 20 |
| Physicist Ernst | 15 |
| Yeager's speed | 18 |
| Supersonic speed word | 21 |
| Speed-ratio number | 18 |
| Speed-of-sound name | 19 |
| Speed of sound word | 19 |
| Speed of sound measure | 22 |
| Sound-speed word | 16 |
| Sonic-speed word | 16 |
| Plane speed unit | 16 |
| Number associated with a boom | 29 |
| Jet speed measure | 17 |
| Flying speed ratio | 18 |
| Endeavor speed measurement | 26 |
| Airspeed ratio | 14 |
| Aerodynamics studier Ernst | 26 |
| ___ number (speed measure) | 26 |
| Word with wave or number | 24 |
| Word often followed by a numeral | 32 |
| Word before 1 or 2 | 18 |
| Tourist destinations | 20 |
| Supersonic speed unit | 21 |
| Supersonic number | 17 |
| SST word | 8 |
| Speed-of-sound word | 19 |
| Speed studier Ernst | 19 |
| Speed of sound indicator | 24 |
| Speed measurement | 17 |
| Sound-speed ratio number | 24 |
| Sound-barrier word | 18 |
| Sound number | 12 |
| Sound barrier name | 18 |
| Sonic-speed unit | 16 |
| Sonic unit | 10 |
| Presidents of the United States of America: "___ 5" | 61 |
| Presidents of the United States of America "___ 5" | 60 |
| Physicist with an eponymous number | 34 |
| Physicist Ernst who studied shock waves | 39 |
| Name often followed by a number | 31 |
| Jet-speed word | 14 |
| Jet-speed unit | 14 |
| Jet speed number | 16 |
| Jet speed category | 18 |
| Jet plane's speed unit | 26 |
| High-speed number | 17 |
| Flying speed word | 17 |
| Flying rate | 11 |
| Flight ratio | 12 |
| Flight number? | 14 |
| Fast measurement | 16 |
| Extremely high speed | 20 |
| Eponymous physicist Ernst __ | 28 |
| Eponym for a measure of speed | 29 |
| Boom measurement | 16 |
| Austrian physicist: 1838–1916 | 36 |
| Austrian physicist Ernst who has a speed unit named after him | 61 |
| Austrian physicist and philosopher | 34 |
| Airspeed number | 15 |
| Airspeed measure | 16 |
| Aerodynamics number | 19 |
| -- number (speed ratio) | 23 |
| ____ number | 11 |
| ___ number (speed ratio) | 24 |
| ___ I (speed of sound) | 22 |
| ___ 5 (Speed Racer's car) | 29 |
| ___ 5 ("Speed Racer" car) | 35 |
| __ one (speed of sound) | 23 |
| __ 1: speed of sound | 20 |
| Papier-___ | 10 |
| Papier-__ | 9 |
| French for "chewed" | 29 |
| Papier-___ (art material) | 25 |
| Papier- -- | 10 |
| Chichi salad green | 18 |
| Art paper | 9 |
| Sugarcane cutters | 17 |
| Sugar cane cutters | 18 |
| Portuguese guitars | 18 |
| Latin American knives | 21 |
| Jungle knives | 13 |
| Cleaver cousins | 15 |
| Cane-cutting knives | 19 |