| TOTO | Spool-like toy consisting of disks, and to which a string is attached - and a cultivar of Cerastlum tomentosum! (2-2) |
| YOYO | Toy consisting of two disks connected by a central dowel pin, and to which a string is attached - and a cultivar of Cerastium tomentosum! (2-2) |
| OTHELLO | Game that comes with a lot of disks |
| SPINE | Holder of disks |
| YARDARM | The end of the ship's spar has three feet attached and a whole limb (4-3) |
| THERES | With 36-Across, "This has strings attached," and a hint to the ends of the starred answers |
| OMARKHAYYAM | Persian mathematician, astronomer, historian, philosopher and poet (1048-1131), and a cultivar of both a damask rose and saxifrage (4,7) |
| LIMBO | Passing forwards under a low bar without falling or dislodging it... and a cultivar of species hybrid iris! (5) |
| LEGO | Meaning "play well", a construction toy consisting of a set of interlocking coloured bricks and minifigures (4) |
| HOBBYHORSE | A toy consisting of a stick with a figure of an equine animal's head at one end (10) |
| WRENS | Small perching birds (of the genus troglodytes), and a cultivar of rhododendron! (5) |
| EMERALDISLE | Of Ireland - and a cultivar of Galanthus ikariae! (7,4) |
| GRANDCANYON | Steep-sided cleft between escarpments carved by the Colorado River in Arizona - and a cultivar of hosta! (5,6) |
| TOPAZ | Pale blue, golden brown or yellow orange gemstone - and a cultivar of dessert apple (5) |
| DIABOLO | Toy consisting of a spool on a string |
| ZOETROPE | Optical toy consisting of a rotating cylinder with a sequence of pictures on its inner surface |
| CORDELIA | Lamb on a string is a princess (8) |
| TUNINGPEG | A pin on a musical instrument around which the string is wound (6,3) |
| OSLO | Norwegian capital and a cultivar of agapanthus (4) |
| AIDA | Opera in four acts by Giuseppe Verdi - and a cultivar of hyacinth! (4) |