| ACIDRAIN | In 1872, Robert Angus Smith, the first British air pollution inspector, coined what phrase? (4,4) |
| OLDGLORY | William Driver coined what name for the US flag? (3,5) |
| EPACOSTUME | Party garb for one going as a pollution inspector? |
| GARDENERS | Adam Smith, the first of those pandering to The Greens perhaps (9) |
| SORBITOL | Sugar alcohol first discovered in the berries of the mountain ash in 1872; used in food as the sweetener E420 (8) |
| ACIDTEST | From a gold purity check, what phrase now means a rigorous or crucial appraisal? (4,4) |
| INCAMERA | What phrase describes a court case held behind closed doors? (2,6) |
| SHERIDAN | ___ Smith, the English actress who played Smithy's younger sister in Gavin & Stacey (8) |
| CHAMBERS | William and Robert ___, brothers who published their first English dictionary in 1872 (8) |
| LEONBLUM | First socialist prime minister of France born in 1872 (4,4) |
| MONDRIAN | Piet, Dutch painter born in 1872 noted for his abstract squares (8) |
| LANGSHAN | Croad ___ is a breed of heavy chickens that were imported to England from China in 1872 (8) |
| OVERLAND | Which telegraph line connected Darwin to Adelaide in 1872 (8) |
| LUCKYCOUNTRY | What phrase coined by Donald Horne, and used in the title of his 1964 book, was intended to be used |
| SQUAREMEAL | What phrase originated from the shape of food trays on early British naval ships? (6,4) |
| ENBLOC | Coming from the French, what phrase means a group of people acting as one? (2,4) |
| SPARK | Author whose novels include The Comforters,The Prime of Miss Jean Brodie (adapted into a film with Maggie Smith), The Girls of Slender Means, A Far Cry From Kensington and The Finishing School (5) |
| JACQUI | Surname of Ms Smith, the former Labour politician who was first out on Strictly in 2020 (6) |
| HARRIS | Arthur - - -, British air marshal, commander-inchief of Bomber Command of the RAF 1942-45 (6) |
| PARENTHESIS | What's phrase set in, possibly? |
