| TENK | Certain race ... or a cryptic |
| MTEREBUS | Southernmost active volcano in the world ... or a cryptic hint to certain squares in this puzzle |
| SPIN | Twirl ... or a cryptic hint to 20-, 36- and 51-Across? |
| BUMP | A jolt; a swelling; a sleeping policeman; a knock of a boat in a rowing race; or, a customary throw or lift in the air of a birthday boy or girl (4) |
| SCURRY | Word, from "bustle, confusion, hurly-burly", for the frantic haste or scudding pace of a horse in a short sprint or race; or, a squirrel or mouse's speedy scampering during a chase (6) |
| POST | A stake or upright marking the start or finish of a horse race; or, a collection or delivery of mail (4) |
| TEASER | A prankster, ribber, tantaliser or taunter; a brain-twister, mind-bender, poser, puzzle or other riddle; a jaeger; a cryptic advertisement designed to entice or titillate; or, a wool-comber (6) |
| BATON | A short baguette; a hollow tube passed from runner to runner in a relay race; or, a rectangular piece of carrot, cheese or other food (5) |
| MARK | A boundary indicator; a symbol such as an X in place of a signature; the start line in a race; or, a target (4) |
| HEAT | Spicy quality of a chilli; preliminary eliminating round in a race; or, a form of thermal or kinetic energy (4) |
| SELECTION | A musical potpourri; an anthology; a horse tipped as likely to win a race; or, a range of items from which one may choose (9) |
| GOAL | One's aim; the finishing point of a journey or race; or, a netted target in football, hockey or other sport (4) |
| TAPE | Thin strip stretched across the finishing line of a race; or, a word linked with measure for an item found in a sewing basket (4) |
| FINISH | End of a race; or, a treatment for wood, such as wax, oil or shellac (6) |
| SCRAMBLE | Emergency take-off by a fighter jet; a motocross race; or, a rocky ascent using one's hands and feet (8) |
| AFROAMERICAN | A first for fellow traveller I dismiss in Kentucky: he's in a certain race there |
| PALATES | A boat race, or a series of such races |
| LEG | Part of a race or a table |
| SACK | Requirement for a certain race |
| ARMS | Acquisitions in a certain race |
