| ONSTREAM | In operation, going into production (2,6) |
| ELOPEMENT | Copper, maybe covering operation, going off to unify (9) |
| OFFONESTROLLEY | Eccentric, like one who is ready for an operation going walkabout? (3,4,7) |
| AVIATION | A way into production that's bound to take off with a pilot (8) |
| TRAVESTY | It could be a send-up, but try to get a vest into production (8) |
| RAYON | Synthetic that went into production in July 1905 |
| WESTMINSTERS | These Austins came into production in 1954 (12) |
| ENZO | Modern classic Ferrari that went into production in 2002 (4) |
| ISAR | Big Goggomobil that Glas put into production in 1958 (4) |
| PATRONISE | Back operation's going wrong, with lack of oxygen |
| TERCET | Top secret operations going to be sent up in a bit of rhyming verse |
| TRICERATOPS | Desert operations, going after a second dinosaur |
| MARINA | Late 1960s / early '70s New Zealand attempt at bringing the Anadol/ Reliant saloon car into production for the local market (6) |
| ANZIEL | Late 1960s / early '70s New Zealand attempt at bringing the Anadol/ Reliant saloon car into production for the local market (6) |
| UNDERWAY | In progress, in operation (5,3) |
| SWOTUPON | Pore over Western books in southern university, start of prep in operation (4,2,2) |
| OPERETTA | Patience, perhaps, in operation before tense volunteers (8) |
| AMERICAN | Transatlantic camera in operation (8) |
| CONCORDE | Supersonic passenger jet airliner in operation from 1969-2003 (8) |
| OUTSTRIP | Doctor I trust in operation to do better (8) |
