| 100% | ETHELRED | 8 | English king (978-1016) who came to the throne at the age of about 12 and had the unfortunate epithet of "the unready" |
| 38% | ANATOMY | 7 | Henry, elected to Britain's Royal Society at the age of 25 and who, six years later, published his 750 page tome about this |
| 38% | NIGHT | 5 | The ___ King, "Game of Thrones" villain who has the ability to create blizzards and freeze anything he touches |
| 35% | JORDANROMERO | 12 | Mountaineer who climbed Mount Everest at the age of 13 and later became the youngest climber in the world to complete the Seven Summits: 2 wds. |
| 32% | HOLLANDTAYLOR | 13 | "Two and a Half Men" actress who came out of the closet in 2015 at age 72: 2 wds. |
| 32% | ENOS | 4 | Biblical figure said to have died at the age of 905 |
| 32% | NEWTON | 6 | Sir Isaac ___, English physicist who gave us the laws of motion and has a wax statue at Madame Tussauds, London |
| 31% | ALEC | 4 | ___ Greven, "How To Talk to Girls" author who published his first book at the age of 9 |
| 31% | NATHANHALE | 10 | Revolutionary War spy who was captured and killed by the British at the age of twenty-one |
| 30% | MAGNUS | 6 | 2016 documentary film about chess prodigy Carlsen who became a Grandmaster at the age of 13 |
| 30% | MARCOPOLO | 9 | Venetian explorer, who is known to be the first to have detailed accounts of travel to, and about China: 2 wds. |
| 30% | BOYD | 4 | Jimmy who had a No. 1 hit at the age of 13 with "I Saw Mommy Kissing Santa Claus" |
| 29% | MIKETYSON | 9 | American former boxer who became the youngest heavyweight champion in history in 1986 at the age of 20 years and 4 months: 2 wds. |
| 29% | ROO | 3 | “In Which Kanga and Baby ___ Come to the Forest, and Piglet Has a Bath” (chapter of “Winnie-the-Pooh”) |
| 29% | INFANTA | 7 | Formerly, a daughter of a king of Spain or Portugal who was not heir to the throne |
| 29% | LENORE | 6 | Poe poem that ends "From grief and groan to a golden throne beside the King of Heaven" |
| 29% | LLAW | 4 | Lleu ___ Gyffes, Welsh mythological hero and magician who dies, is resurrected and ascends to the Throne of Gwynedd |
| 28% | ATTAR | 5 | Sufi poet thought to have coined the adage found at the starts of 19-, 27-, 45- and 52-Across |
| 28% | DICKSARGENT | 11 | "Bewitched" actor who came out of the closet in 1991 at age 61: 2 wds. |
| 28% | VANDERWAAL | 10 | Grace ___, singer who won the eleventh season of "America's Got Talent" at age 12 |
| 28% | BENTHAM | 7 | Jeremy —, English philosopher who wrote 1789 work Introduction to the Principles of Morals and Legislation |
| 28% | LOLITA | 6 | About whom Nabokov said "She was like the composition of a beautiful puzzle - its composition and its solution at the same time" |
| 28% | DAYAN | 5 | Israeli hero who joined the Haganah at the age of 14 |
| 28% | MOZART | 6 | Composer who wrote his first concerto at the age of five |
| 28% | GEORGETAKEI | 11 | "Star Trek" actor who came out of the closet in 2005 at age 68: 2 wds. |
| 28% | WISEACRE | 8 | Word that comes from the Dutch for "soothsayer" and, despite appearances, has no relation to a unit of measurement |
| 28% | MICHAELPHELPS | 13 | US swimmer who came out of retirement in 2014 to swim at the Rio Olympics: 2 wds. |
| 28% | ICEMAN | 6 | Marvel superhero of the X-Men who has the ability to freeze water vapor and make structures |
| 27% | YODA | 4 | Character who died at the age of 900 in "Return of the Jedi" |
| 27% | VINCE | 5 | With 19a, Sacramento Kings player who had a pre-game ritual of pulling himself up by the net and kissing the rim |