| HEARTOFDARKNESS | Novella that served as the basis for "Apocalypse Now" |
| NAM | Setting for Apocalypse Now, colloquially (3) |
| BEVERIDGE | William ---, British economist whose 1942 report served as the basis for the post World War II welfare state (9) |
| STORMONT | Belfast castle that served as the official residence of the Prime Minister of Northern Ireland from 1921 to 1972 (8) |
| DANVILLE | City in Virginia that served as the final capital of the Confederacy in 1865 (8) |
| STEPHENS | St -, ancient chapel in the old Palace of Westminster that served as the House of Commons (8) |
| OSTIA | Town that served as the port of ancient Rome |
| GARUDA | Half-bird, half-man deity that served as the vahana (mount) of Vishnu (6) |
| MIR | The name of the Soviet/Russian modular space station that served as a versatile space laboratory for more than 14 years, starting in 1986, before ground controllers forced it down into the Pacific Oce |
| ROMA | Tomato cultivar commonly used for canning and as the basis for Italian sauces |
| GLEBE | From Latin for "clod", a plot of land attached to a parish church that served as part of a clergyman's benefice; or, a poetic word for fields or the soil (5) |
| OPINIONPOLLS | Assessments of public opinion by questioning a representative sample, especially as the basis for forecasting the results of voting (7,5) |
| CASHEWNUT | Seed consumed as a snack, sometimes used as the basis for a korma sauce (6,3) |
| INAGROVE | Short story by Ryunosuke Akutagawa used by Akira Kurosawa as the basis for the characters and plot of his movie Rashomon |
| CURD | Coagulated substance formed from milk by the action of acid or rennet, used as the basis for cheese (4) |
| TNT | Explosive used as the basis for a 'megaton' |
| POSIT | Lay down or assume (as the basis for an argument) (5) |
| POSTULATED | Assumed (something) as the basis for reasoning |
| FOOTHOLD | Small area captured and held as the basis for subsequent advance (8) |
| ROUX | Mixture of fat and flour, used as the basis for sauces (4) |
