| TWEENAGER | (Informally) a child approaching the age of 13? (9) |
| PUTITDOWN | Command to a child approaching a white wall with a crayon |
| RISING | Approaching the age of rebellion |
| SAILORKING | Nickname of William IV, the third son of George III who served in the Royal Navy from the age of 13 (6,4) |
| BARMITZVAHS | In Judaism, ceremonies that mark boys' assumption of full religious obligations after reaching the age of 13 (3,8) |
| BARMITZVAH | Ceremony in Judaism marking a boy attaining religious responsibility at the age of 13 (3,7) |
| MAGNUS | 2016 documentary film about chess prodigy Carlsen who became a Grandmaster at the age of 13 |
| LAWRENCE | Child prodigy who graduated from Oxford University in 1985 at the age of 13 |
| RUTH | Child prodigy who graduated from Oxford University in 1985 at the age of 13 |
| PRETEENS | Children up to the age of 13 (3-5) |
| ANDYUREN | Scrum-half who has been at Bristol since the age of 13 (4,4) |
| TEENAGE | Between the ages of 13 and 19 |
| TEENAGER | One between the ages of 13 and 19 (8) |
| TWEENIE | Child approaching his teens |
| TOTTERS | Child approaching shortcut walks off (7) |
| TWEEN | Child approaching adolescence (5) |
| PRETEEN | Child approaching adolescence |
| FEED | Fodder or forage for a farm animal; pasture or provender generally; an allowance of formula, milk etc for a baby; an act of nourishing said tot or of supplying a machine; or, informally, a plentiful m |
| HEADSEA | Mass of waves approaching the front of a ship |
| WEEFREE | Informally, a member of a minority group outside the 1900 union of the two main Scottish Presbyterian churches |