| 100% | SPEKE | 5 | John Hanning —, Devon-born explorer who discovered Lake Victoria in 1858 |
| 76% | SPEKE | 5 | John Hanning —, Devon-born adventurer who explored Lake Victoria in 1858 |
| 50% | BURTON | 6 | Richard —, English explorer who, with John Speke, discovered Lake Tanganyika in 1858 |
| 43% | SPEKE | 5 | John ___, English explorer who named Lake Victoria |
| 35% | STURT | 5 | Charles —, explorer who discovered the Darling River in Australia in 1829 |
| 34% | HENRYHUDSON | 11 | English explorer who discovered a large Canadian bay in the early 1600s: 2 wds. |
| 32% | CHO | 3 | Actor John who was born in South Korea |
| 30% | KARNO | 5 | Fred —, music-hall impresario born Frederick John Westcott in Exeter, Devon in 1866 |
| 30% | KARNO | 5 | Fred —, music-hall impresario born Frederick John Westcott in Exeter, Devon, in 1866 |
| 29% | DESOTO | 6 | Spanish explorer who discovered the Mississippi |
| 29% | ERIK | 4 | Redhaired Viking explorer who discovered Greenland |
| 28% | DESOTO | 6 | Hernando —, Spanish explorer who discovered the Mississippi River |
| 28% | MUNGO | 5 | & 18D Scottish explorer born in 1771 who published the volume Travels in the Interior Districts of Africa |
| 28% | SPEKE | 5 | John Hanning ___: explorer of the Nile |
| 28% | CARTIER | 7 | Jacques —, French explorer who discovered St Lawrence River, Canada |
| 28% | SEAFARER | 8 | Explorer who crosses oceans in a boat |
| 28% | DORA | 4 | Explorer who appears in "Go, Diego, Go!" |
| 27% | DYKES | 5 | John Bacchus —, Kingston upon Hull-born church composer who died in 1876 |
| 27% | CARTIER | 7 | Jacques —, French explorer who discovered the St Lawrence River, Canada |
| 27% | HENRYHUDSON | 11 | Explorer who sailed into 46-Across in 1609 |
| 27% | BAKER | 5 | Samuel —, 19th-century English explorer who named Lake Albert in Africa |
| 27% | VESPUCCI | 8 | Explorer who expanded Spain's trade routes in 1500 |
| 27% | HERSCHEL | 8 | William —, astronomer who discovered Uranus in 1781 |
| 27% | HERSCHEL | 8 | William, astronomer who discovered Uranus in 1781 |
| 27% | NANSEN | 6 | Fridtjof —, Norwegian explorer who died in 1930 |
| 26% | KNUD | 4 | & 5D Greenland-born Danish polar explorer who died in 1933 |
| 26% | DORA | 4 | Explorer who visits Peru in a 2019 live-action movie |
| 26% | NANSEN | 6 | Fridtjof —, Norwegian arctic explorer who died in 1930 |
| 26% | PEARY | 5 | Robert —, US Arctic explorer who died in 1920 |