| WHOOPER | A swan, the type species of the genus Cygnus |
| GREYLAG | A goose, the type species of the genus Anser |
| SWAN | A large aquatic bird of the genus Cygnus or Coscoroba |
| GENRE | Literary type, species (5) |
| TRUFFLES | Fruiting bodies of a subterranean fungus, predominantly one of the many species of the genus tuber (8) |
| WHELK | Name applied to a number of marine gastropods, especially species of the genus Buccinum (5) |
| CHIMPANZEE | Hominid species of the genus Pan which split from the human species 4-6 million years ago (10) |
| OXLIP | A species of the genus Primula (5) |
| JAGUAR | Large cat species of the genus Panthera, native to the Americas (6) |
| LOVAGE | Only species of the genus Levisticum whose leaves serve as a herb (6) |
| NIGHT | - - - - - scented stock - sweet-smelling species of the genus matthiola (5) |
| OCELOT | Largest species of the genus Leopardus |
| CATNIP | Species of the genus nepeta that is attractive to felines (6) |
| OSIER | Narrow-leaved shrub species of the genus Salix (5) |
| GRAHAM | Author of the Poldark novels set in Cornwall including The Black Moon, The Four Swans, The Miller's Dance and The Loving Cup (6) |
| CYGNET | From the Latin meaning "swan", the chick of said water bird (6) |
| ARONOFSKY | Darren ---, acclaimed US director of Black Swan, The Whale and Pi |
| OHIO | 17th state of the US - and one species of the horse chestnut genus (aesculus) is known as the ___ buckeye! (4) |
| SPEEDWELLS | Plants of a species of the Veronica genus (10) |
| SWIFTS | Fastest of the bird species, of the family Apodidae, capable of more than 160kmh (6) |
