| Clue | Source | Date |
|---|---|---|
| Scottish engineer and inventor associated with the steam engine (5,4) | ||
| Inventor who gave his name to the SI unit of power (5,4) | ||
| Scottish engineer and inventor (1736-1819) after whom the SI unit of power is named (5,4) | ||
| ELECTRICAL POWER | Newsday | 27 Aug 2023 |
| Pioneer in steam engines | New York Times | 07 Jul 2018 |
| Engineer who introduced the term 'horsepower' | Wall Street Journal | 08 Mar 2018 |
| Pioneer in steam engines | ||
| Former Interior Secretary | ||
| Ex-Cabinet member or Scottish inventor |