| THISTLEDOWN | Mass of light, fluffy threads attached to the seeds of onopordum, cirsium and other related plants, enabling them to be carried on the wind (11) |
| COMAE | Botany: tufts of hairs attached to the seed coats of some seeds (5) |
| SOW | What Tears for Fears will do to "The Seeds of Love" |
| AIRINESS | Quality of light, fluffy matzo balls |
| THISTLE | Composite plant with a prickly stem and leaves and rounded flower heads; various genera, including Carduus, Cirsium and Onopordum (7) |
| SMEE | Echoed in the name of Neverland's "oddly genial" boatswain of Captain Hook, a dialect term for a pintail, pochard, wigeon or other related duck of compact streamlined look (4) |
| SERIES | A cycle/set of banknotes, books, coins, games, stamps, television dramas or other related things (6) |
| UPON | Formal 'on', as in thistle___-thistle, the alternative common name for cotton thistle (Onopordum acanthium) (4) |
| ETC | Plus other related things |
| ATROPINE | Poisonous alkaloid occurring in deadly nightshade and related plants, used medicinally to dilate the pupils, stimulate the heart etc. (8) |
| UMBEL | Inflorescence of carrot and related plants including dill, fennel and parsley (5) |
| ALLIUM | Meaning "garlic", the genus assigned by Carl Linnaeus in 1753 to onions and their related plants/vegetables (6) |
| GENERATOR | Producer of groups of related plants on the hill |
| POME | Fleshy fruit of the apple and related plants (4) |
| CONE | The reproductive body of conifers and related plants (4) |
| EDDO | The edible root of the taro or several related plants. |
| ERGOT | Group of fungi such as that which grows on rye and related plants |
| SOUFFLE | Light fluffy dish with a base of egg yolks and stiffly beaten egg whites (7) |
| FEATHER | One of the light fluffy things that cover a bird's body |
| CLUB | ___ root, fungal disease of brassicas and related plants (4) |
