| RACEME | Challenge by sprinter for cluster of flowers (6) |
| SPRAYS | Uses a rose for clusters of flowers (6) |
| HYDRANGEA | Genus of shrubs cultivated for clusters of white, pink or blue flowers (9) |
| ARCHIPELAGO | Head off geographical upheaval for cluster in the ocean (11) |
| SPADIX | Cluster of flowers in spring, ten in Versailles (6) |
| VIOLET | Plant of the genus Saintpaulia with a showy cluster of flowers that is cultivated as a |
| CATKIN | Cluster of flowers on a willow |
| ZAMANG | Large ornamental tropical American tree with bipinnate leaves and globose clusters of flowers with c |
| WAGER | Challenge by a defendant to prove his innocence by personal combat / bet |
| FRONTRUNNER | Self-confidence shown by sprinter, say, leading competitor (5-6) |
| DIVERGENCE | Creed given challenge by deviation (10) |
| TESTMATCH | Challenge by peer in major cricket game (4,5) |
| CONTESTANT | Competitor opposed to challenge by worker (10) |
| PIP | An apple seed; a single blossom in a cluster of flowers; a rootstock or rhizome of the lily of the valley; or, a Bath star (3) |
| TRUSS | A bundle of hay or straw; a pack; a fitting by which a yard is fixed to a mast; a corbel; a cluster of flowers/fruit on a stalk; or, any supporting framework (5) |
| STARTINGBLOCK | Device used by sprinter (8,5) |
| RIPSNORTER | One's fast and furious, or lapped by sprinter, perhaps |
| RUNNINGSTITCH | Sewing technique experienced by sprinter |
| OESTRUS | Heat regularly opens most of cluster of flowers |
| UMBEL | A cluster of flowers collected by Thumbelina (5) |
