| BREWSTER | Sir David _; Scottish physicist and kaleidoscope inventor (8) |
| RANKINE | Of which scale, named after a Scottish physicist and based on the Fahrenheit degree, does 491.67 equ |
| MCCALLUM | David ___, Scottish actor who played Illya Kuryakin in 1960s US television series The Man from U.N.C.L.E. (8) |
| SYMMETRY | Kaleidoscope image feature |
| MISHEARD | Like the Beatles lyric "The girl with colitis goes by" for "The girl with kaleidoscope eyes" |
| PEEPHOLE | Kaleidoscope opening |
| CASTAWAY | Any one of the "shipwrecked" guests on BBC Radio 4's Desert island Discs whose past examples include Princess Margaret and Sir David Attenborough (8) |
| THEGREEN | Sir David Attenborough's plant-based TV offering (3,5,6) |
| SUCHET | Sir David ___, actor known for his portrayal of Hercule Poirot (6) |
| LEAN | Sir David ___, Doctor Zhivago director (4) |
| KIRKE | Sir David ___ (17th-century first Governor of Newfoundland) |
| LOW | Sir David __, cartoonist who satirised Hitler (3) |
| HARE | Sir David ___, English playwright (4) |
| ATTENBOROUGH | Sir David ___, presenter of nature programmes on TV (12) |
| FROST | Journalist famed for interviewing Richard Nixon, Sir David _ (5) |
| TENNANT | David ___, Scottish actor and very popular tenth Doctor (7) |
| MAXWELL | James Clerk -; Scottish physicist who identified the electromagnetic nature of light (7) |
| WATSONWATT | Scottish physicist who pioneered radar technology (6-4) |
| CLERK | James ___ Maxwell, Scottish physicist (5) |
| LIVINGSTONE | David ___, Scottish missionary and explorer interred in the nave of Westminster Abbey on April 18, 1874 (11) |