Across
1/39 Nickname of legendary frontierswoman buried next to Wild Bill Hickok in Deadwood, South Dakota (8,4)
5 In 1986, a USSR–US summit meeting here failed to produce the hoped-for arms limitation agreement but was considered a Cold War turning point (9)
11 SOE agent, codename Madeleine, the first female radio operator to be sent into Nazi-occupied France (4,6,4)
12 Earliest settlers of Hokkaido, largely displaced from their traditional lands by Japan during the 19th century (4)
13 ___ III, 15th-century ruler of Wallachia, thought to have inspired Bram Stoker's Dracula (4)
14 Margaret Thatcher's surname at birth (7)
15 An amphitheatre's central area (5)
The vast
