| CROWSFOOT | Fine lines at first described by bird? |
| ACROBAT | Person who might walk a fine line at work? |
| LAMELLA | Thin layer impaired by lines at first (7) |
| ALOUD | Pair spin a line at first so as to be heard (5) |
| DODO | Extinct bird first described by Richard Owen and immortalised in Alice's Adventures in Wonderland (4) |
| AUTISM | Neurodevelopmental disorder first described by Hans Asperger and Leo Kanner |
| FEATHERS | Appendages studied in plumology that derive their colours from melanins and iridescence from the structural coloration first described by Hooke and Newton (8) |
| IGUANA | Genus of lizard first described by Austrian naturalist Josephus Nicolaus Laurenti in 1768 |
| NYALA | South African spiral-horned antelope first described by English naturalist George French Angas in 1849 (5) |
| ADHD | Condition first described in the DSM by its current letters in 1987 |
| ASTHMA | Respiratory disorder first described and named ('to breathe hard') by the Greek physician Hippocrates circa 450 BC (6) |
| RUSSIANROULETTE | Potentially deadly game first described in an 1840 short story by writer Mikhail Lermontov (7,8) |
| KINETOSCOPE | Early motion picture viewing device first described in conceptual terms by Thomas Edison in 1888 |
| TWOLEGGED | Type of stance Blair first described as bad, later better |
| DRYPOINT | An etching needle by which fine lines are drawn to leave an engraving/ burr on a copperplate; or, the print or impression, such as Rembrandt's The Three Crosses, so produced (3-5) |
| THEGREATESTSHOWONEARTH | Popular billing for circuses, thought to have first described that of Dan Rice |
| BYRONIC | Like moody Romantic heroes, as first described in the works of a British lord |
| FALLOPIO | Gabriello ___, Italian anatomist who first described a pair of slender tubes through which ova pass from the ovaries to the uterus |
| BECHDELTEST | Standard for female representation in film first described in the comic strip "Dykes to Watch Out For" |
| PRECINCT | Word that first described an administrative district, later an enclosed area around a cathedral, church or college; or, an open-air, pedestrianised galleria in a town (8) |
