| ARC | Shape of the top of a circle |
| INSTEP | What is a name for the arched part of the top of the foot between the ankle and toes? (6) |
| FULLCREAM | Farce, produced on Mull, is top of the top of the milk! (4,5) |
| TOMB | The dead centre of the top of Mont Blanc summits (4) |
| KNEECAP | Can keep out of the top of the joint (7) |
| SCALP | Skin of the top of the head (5) |
| SPOT | Catch sight of the top of the obelisk in little seaport (4) |
| THINAIR | Feature of the top of Mt. Everest |
| SNOWCAPS | Features of the tops of some peaks |
| DATE | Palm fruit whose name, meaning "finger", refers to the shape of the plant's leaves; or, any one of the specified days of the month represented on a calendar (4) |
| HUYGENS | Dutch mathematician, astronomer, and physicist, who founded the wave theory of light, discovered the true shape of the rings of Saturn. He discovered Saturn's moon Titan with a telescope in 1655. |
| OXBOW | A horseshoe bend or meander in a river, named for its resemblance to the U-shape of the collar of a yoke (2-3) |
| GEODESY | The branch of science that deals with the measurement of the size and shape of the Earth (7) |
| DELTOID | In the human body, muscle named after the shape of the fourth letter of the Greek alphabet (7) |
| OCTAGONAL | Shape of the central hall of the Taj Mahal and the exterior of Shakespeare's Globe |
| CRESCENT | Word for the curved shape of the waxing/waning moon that is applied to anything of similar form, such as a croissant or the younger John Wood's sweeping terrace in Bath (8) |
| LOZENGE | From "stone slab", a word first for a rhombus, later a cachou, medicated tablet or pastille, originally in the shape of the aforesaid diamond (7) |
| PHASE | One of the recurring shapes of the portion of the moon illuminated by the sun (5) |
| CAMBER | The slightly convex shape of the surface of a road (6) |
| PHRENOLOGY | Determination of a person's character by the shape of the skull (10) |
