| PHILBY | British intelligence officer and double agent who was a member of the Cambridge Five spy ring (6) |
| ODETTE | _ Hallowes, Second World War agent who was the first woman to be awarded the George Cross (6) |
| NESS | Federal agent who was the inspiration for Dick Tracy |
| VERAATKINS | Romanian-born British intelligence officer in the Special Operations Executive (1941-45) (4,6) |
| LASHANA | With 33-Across: she will play the British intelligence officer tasked with finding and eliminating 10-Across |
| DONALD | Member of the Cambridge Five spy ring who died in 1983 (6,7) |
| GUYBURGESS | Member of the Cambridge Five spy ring who fled to Russia and died there in 1963 (3,7) |
| CAIRNCROSS | Surname of the member of the Cambridge Five spy ring born in Lanarkshire (10) |
| MACLEAN | Member of the Cambridge Five spy ring who died in 1983 (7) |
| AUSTIN | Maker of the Cambridge (6) |
| FORSTER | Author of novels including A Room with a View, Howards End and A Passage to India who was a member of a secret society known as the Cambridge Apostles (7) |
| KIMPHILBY | One of The Cambridge Five (3,6) |
| PSYCHO | Film chain entertained by dodgy spy ring (6) |
| NEALE | Surname of the founder of the Cambridge Camden Society and author of many well-known hymns, including Jerusalem The Golden (5) |
| ACORN | Any one of the oak tree seeds represented on the coat of arms of the Duchess of Cambridge (5) |
| APOSTLES | Some of the 'Cambridge spies' were members of the university's secret society, formed in 1820 (with 12 members), The ___ (8) |
| DONALDMACLEAN | Cambridge Five spy code-named Homer * (6,7) |
| SPY | Purdey in The New Avengers, played by Joanna Lumley in the 1970s, was this kind of British INTELLIGENCE agent (3) |
| BERRY | Former GBBO judge who featured in a recent cookery programme with the Duke and Duchess of Cambridge (5) |
| KIM | India-born English double agent who defected to the Soviet Union in 1963 (3,6) |
