| MOBIUSSTRIP | Surface with one continuous side, formed by joining the ends of a rectangle after twisting it - I st |
| SEAM | Line formed by joining two pieces of fabric (4) |
| KLEINBOTTLE | A closed surface with one side, mathematically constructed (5,6) |
| BUCKLE | A clasp used for joining the ends of a belt or strap (6) |
| AREA | You find the ... of a rectangle by multiplying the length by the width (4) |
| GOLDDIGGER | Key to ancient excavator produced by one out to make the most of their prospects by joining a Union perhaps (4-6) |
| SHEEPSHANK | Knot consisting of two hitches at the ends of a bight made in a rope to shorten it temporarily (10) |
| REEFKNOT | Secure way of joining the ends of two ropes (4,4) |
| BAGUETTE | Another name for a French stick; or, a precious gem cut in the shape of a rectangle (8) |
| OVERLANDTELEGRAPH | What when completed in 1872, linked Australia to the rest of the word by joining a submarine cable b |
| CUSP | A point as one of the ends of a crescent |
| SPAN | Distance between two points, such as the ends of a bridge or the thumb and little finger; or, the duration of something in time (4) |
| INAKNOT | Join by tying together the ends of a piece of string (2,1,4) |
| CHORD | Straight line joining the ends of an arc (5) |
| URCHIN | A street kid who got rich by joining the United Nations (6) |
| TINCANS | Containers put on the ends of a string to make a toy telephone: 2 wds. |
| CUFFLINKS | Fasteners sometimes used for securing the buttonholes at the ends of a dress shirt's sleeves (4,5) |
| SEESAW | What is a children's game in which participants ride up and down on the ends of a plank (6) |
| SIGNINGON | Inn's going wrong by joining the club |
| PER | By joining the jury, becomes criminal (3) |
