| COAXAL | Geometry: a set of circles having the same radical axis (6) |
| LOLLOPS | Circles having lengths within bounds |
| RADIUS | In geometry, a line from a circle's centre to its circumference; or, a bone of the human forearm (6) |
| SECTOR | In geometry, a portion of a circle enclosed by two radii and an arc (6) |
| STEREO | Terse about circle having two speakers (6) |
| ODDJOB | Miscellaneous household task, and what's found in each set of circles |
| NODE | In geometry, a point at which two branches of a curve intersect (4) |
| HALO | Hal joins the circle having seen the light (4) |
| COTERIE | Exclusive circle having a bed by the Lake (7) |
| PRISM | In geometry, a solid figure of which the two ends are similar, equal and parallel rectilineal figures (5) |
| RADAR | In geometry, a problem based on a theorem (5) |
| RIDER | In geometry, a problem based on a theorem (5) |
| CHILIAGON | In geometry, a closed plane figure having 1000 sides (9) |
| KITE | In geometry, a quadrilateral with reflection symmetry across one of its diagonals (4) |
| ICOSAGON | In geometry, a closed plane figure having twenty sides (8) |
| HENDECAGON | In geometry, a closed plane figure having eleven sides and eleven angles (10) |
| BATHOLIVER | City circle having one existing biscuit (4,6) |
| HEPTAGON | In geometry, a polygon with seven sides (8) |
| DECAGON | In geometry, a plane figure with ten straight sides (7) |
| TRAPEZIUM | In geometry, a quadrilateral with two parallel sides (9) |
