| HOVERCRAFT | Form of transport successfully developed by Sir Christopher Cockerell |
| OTTO | Palindromic name of a German engineer who came up roses when he successfully developed the first practical four-stroke petrol engine (4) |
| STPAULS | Abbreviated name of the London cathedral redesigned by Sir Christopher Wren following its destruction by fire in 1666 (2,5) |
| PORTLAND | Peninsula on Dorset's Jurassic Coast whose limestone was chosen by Sir Christopher Wren to rebuild St Paul's Cathedral following its destruction by fire in 1666 (8) |
| TENET | 2020 sci-fi action thriller directed by Sir Christopher Nolan (5) |
| BULB | Rounded part of a mercury thermometer; an item developed by Sir Joseph Swan; or, a head of garlic (4) |
| GOLDENRETRIEVER | Dog breed developed by Sir Dudley Majoribanks at his Guisachan estate in the 1860s (6,9) |
| NICHOLAS | Forename of Sir Christopher Wren or Sir John Vanbrugh's collaborator known as the "devil's architect" for his use of satanic or pagan symbols (8) |
| HATTON | Sir Christopher ___, Lord Chancellor of England and a favourite of Elizabeth I (6) |
| SOCIETY | Royal -; founded by Robert Boyle, Sir Christopher Wren and others and granted a royal charter by Charles II, the UK's national science academy (7) |
| PAULS | London cathedral designed by renowned architect Sir Christopher Wren, St ... (4'1) |
| WREN | Sir Christopher -, architect of St Paul's |
| COCKERELL | Sir Christopher Sydney --, inventor of the hovercraft (9) |
| GIBBS | Scottish architect who developed Sir Christopher Wrens ideas for St Martins-in-the-Fields, London (5) |
| LEE | Sir Christopher who played Dracula (3) |
| ASTRONOMER | SIR CHRISTOPHER WREN |
| TROLLEY | Unpleasant type displayed by outsides of every form of transport (7) |
| AEROPLANE | George Cayley discovered many of the principles by which this form of transport works ... |
| ECSTASY | First of actors leaving company in simple form of transport (7) |
| RUSTBUCKET | Broken down tube stuck south of river, unreliable form of transport (4,6) |
