| Clue | Source | Date |
|---|---|---|
| Relentless fighters | Eugene Sheffer | 11 Jan 2023 |
| Very aggressive types built complex in place beside school | Irish Times Crosaire | 07 Aug 2019 |
| Hit the gas pedal hard | New York Times | 01 Apr 2017 |
| Tough, tenacious sorts | ||
| Relentless fighters | Eugene Sheffer | 25 Aug 2016 |
| Optimists on the trading floor? | ||
| Jon Stewart's Shamsky and Monkey, e.g. | ||
| Extremely aggressive sorts |