| OBSCURER | Less well-known old boy's a successful doctor (8) |
| FAMOUSLY | Well-known old American replaces one in family (8) |
| CURER | A successful doctor is also a smoker (5) |
| NOTEPAD | Well-known old man stops writer's block? |
| BOATRACE | Oxbridge competition upset old boy a bit |
| CORNWELL | David ___, name by which John le Carre is less well known (8) |
| CAPTURER | He seizes what's relevant in successful doctor (8) |
| SIDESHOW | For the less well-known characters performing in Chips, for example, and Hawaii Five-O, for instance (8) |
| PRINCESS | She gives a blue-blooded boy a bit of a kiss (8) |
| ELECTRON | Adopt boy, a tiny little thing (8) |
| SONATINA | Little piece of boy, a girl (8) |
| PERSONAL | Up close and, for each father's boy, a little initiation (8) |
| OBSCURE | Little-known old boy's priest in Paris |
| AMORETTO | Chubby little boy, a tot unfortunately scoffing second helping? |
| OBELI | Marks on script made by old boy, a priest |
| OBVIATE | Forestall old boy, a vet I excited (7) |
| ALUMNUS | Old boy, a smoker, accompanying student group (7) |
| NABOB | Arrest the old boy, a wealthy man (5) |
| OBLONG | Yearn to support old boy, a figure in geometry (6) |
| INCHCAPEROCK | Less well-known name for reef off Angus coast (8,4) |