| GCHQ | British intelligence and security organisation based in Cheltenham, Gloucestershire (inits) |
| AMISH | This religious sect, based in Cheltenham, is highly secretive (5) |
| FBI | Turf bindweed, to find the United States intelligence and security service! (1,1,1) |
| ROYALMINT | Organisation based in Llantrisant, Wales, which possesses the sole right to manufacture coins and no |
| UNESCO | Transnational educational organisation based in Paris (6) |
| INTERPOL | Law-enforcement organisation based in Lyons |
| REDCROSS | International humanitarian organisation based in Geneva (3,5) |
| CERN | High-energy particle physics research organisation based in Geneva |
| CIA | Organisation based in Langley, Virginia (3) |
| LOTT | Felicity ___, soprano born in Cheltenham in 1947 who debuted at the English National Opera in 1975 ( |
| FEUDALISM | Military and political organisation based on land tenure (9) |
| SPECTRUM | International security organisation for which Captain Scarlet is an agent in the Gerry Anderson puppet series Captain Scarlet and the Mysterons (8) |
| KIMPHILBY | Member of British intelligence who worked as a spy for the Soviet Union in the 1930s, '40s and '50s (3,6) |
| PHILBY | Kim, British intelligence agent who spied for the Soviet Union and defected in 1963 (6) |
| HOLST | Gustav, English composer born in Cheltenham in 1874 (5) |
| ORGAN | Felix ...., Hants opener who made 118 against Gloucs in 2022 in Cheltenham (5) |
| NAOMI | No security organisation will bring in a woman |
| CINEMA | Screen persons caught up in security organisation |
| ASIO | Security organisation heads held in occasional times as an acronym |
| BOSS | National security organisation in South Africa from 1969-80 (4) |
