| ANDREAS | German engineer who drove the first working steam locomotive in Germany (6, 7, 8) |
| SCHUBERT | German engineer who drove the first working steam locomotive in Germany (6, 7, 8) |
| JOHANN | German engineer who drove the first working steam locomotive in Germany (6, 7, 8) |
| IRONHORSE | Steam locomotive, in old lingo |
| BARNEYMCGREW | Bearded fireman who drove the fire engine in the children's TV series Trumpton (6,6) |
| SIMON | Soldier who drove the Spaniards from Venezuela, Colombia, Ecuador and Peru (5,7) |
| BOLIVAR | Soldier who drove the Spaniards from Venezuela, Colombia, Ecuador and Peru (5,7) |
| SMALLTIME | Working steam mill of no great importance (5-4) |
| WILLIAM | Scottish engineer who built the first working steamboat, in 1802 (7,9) |
| SYMINGTON | Scottish engineer who built the first working steamboat, in 1802 (7,9) |
| BAIRD | John Logie ___, Scottish engineer who demonstrated the first working television system in 1926 |
| DAIMLER | Gottlieb, German engineer who built one of the earliest motor cars in 1885 (7) |
| DIESEL | Rudolf, the German engineer who invented the internal combustion engine that bears his name (6) |
| BENZ | German engineer who built the first petrol-engined car (4) |
| RUDOLFDIESEL | German engineer who invented a type of engine, which is named after him (6,6) |
| KARLBENZ | German engineer who designed and built the first practical automobile (1885) |
| OTTO | Palindromic name of a German engineer who came up roses when he successfully developed the first practical four-stroke petrol engine (4) |
| WANKEL | Felix, German engineer who invented a four-stroke internal-combustion engine (6) |
| BOX | Christmas -; offerings or gratuity once given to staff on what was the first working day after Christmas, hence the celebrations observed on December 26 (3) |
| TIMON | Athenian got it back before the first working day (5) |
