| MAGRITTE | Belgian Surrealist who painted Golconda, The Mysteries of the Horizon and others featuring bowler hats (8) |
| OILRIGS | The notorious Deepwater Horizon and others |
| CRICKET | British sport featuring bowlers |
| OMOO | Novel that ends "By noon, the island had gone down in the horizon; and all before us was the wide Pa |
| SEXTANTS | Maritime navigational instruments that use angle between the horizon and a celestial body. |
| LEYS | Victor Segalen novel about a westerner obsessed with the mysteries of the Forbidden City, Rene ... |
| UNKNOWN | Organisation is familiar with the mysteries of the world, for example (7) |
| AZIMUTH | The angular distance from the north or south point of the horizon to the foot of the vertical circle through a heavenly body. In space, it describes the horizontal direction of a celestial body. |
| CHINESE | Are such puzzles the mysteries of the East? (7) |
| WENTWORTH | Patricia ?, author of 1949 novel The Catherine Wheel and others featuring Miss Maud Silver (9) |
| GARDNER | Erle Stanley ?, author of 1937 novel The D. A. Calls It Murder and others featuring Doug Selby |
| SUE | French surgeon-turned-author and dandy who penned The Mysteries of Paris and depiction of fashionable high life in Arthur (3) |
| ATOM | "The Ghost in the ___: A Discussion of the Mysteries of Quantum Physics" |
| DALI | Surrealist who painted "The Persistence of Memory" |
| HILTON | Surname of the author of Lost Horizon and Goodbye Mr Chips (6) |
| RICHARDSON | Author of the Pilgrimage sequence of novels that includes Backwater, Clear Horizon and Honeycomb (10) |
| EAST | Direction toward the point of the horizon where the sun rises (4) |
| RADCLIFFE | Author who wrote the 1794 Gothic novel The Mysteries Of Udolpho, Ann _ (9) |
| ERNST | Surrealist who painted "Forest and Dove" |
| ZENITH | One of the two poles of the horizon (6) |
