| FIXEDAIR | The original name for carbon dioxide (5,3) |
| CHEMICALFORMULA | CO2 is the one for carbon dioxide (8,7) |
| NOSTRIL | An opening for air to get in, and for carbon dioxide to... (7) |
| GRANTA | The original name for the River Cam, still in use locally |
| OASIS | The Rain was the original name for this Mancunian rock band founded in 1991 |
| ATOMICPILE | The original name for a nuclear reactor |
| CROSSRAIL | The original name for 12 & 6 (9) |
| OAT | Grain that was part of the original name for Cheerios |
| IDLEWILD | Original name for J.F.K. Airport |
| HALFLIFE | About 5700 years, for carbon-14 |
| UGOBUONCOMPAGNI | What was the original name of the Pope who was Professor of Law at Bologna, a theologian of the Coun |
| ESMERALDA | In 1906, the original name of the film 'The Hunchback of Notre Dame' (9) |
| SEAPIE | A sailor's varying layered dish of salt meat with a hardtack or pastry crust, traditionally eaten on the briny/main; or, the original name, referring to its black-and-white plumage, for an oystercatch |
| EDWARD | King who abdicated for love; or, the original name of A A Milne's silly old bear, Winnie-the-Pooh, who floats to fetch honey in a tree, high up above (6) |
| STILLENACHT | The original name of the world's most recorded Christmas song |
| HOYLE | Original name for a channel of water between Hilbre Island and Dove Point, ___ Lake; its name was corrupted and adopted by a seaside town, now home of the Royal Liverpool Golf Club (5) |
| DESERET | The Mormons' original name for the state of Utah, meaning "honeybee" (7) |
| TILLTHEBOYSCOMEHOME | Original name for the Ivor Novello song republished as Keep the Home-Fires Burning |
| BEANO | Original name for "bingo," after the bits used to cover the playing cards |
| DOME | Millennium -; original name for The O2 in London (4) |
