| CAUSALITIES | The roots of an incident (11) |
| CUBE | ...to square the root of an iceberg? (4) |
| SABOT | French clog ... and the root of an English word meaning "disrupt" |
| RHIZOSPHERE | Region of the soil in contact with the roots of a plant |
| TONSILLITIS | Inflammation affecting either of two small masses of lymphoid tissue on each side of the root of the |
| OMAGH | Principal town of County Tyrone that, in 1998, was the target of an incident that became known as No |
| ANECDOTE | From the Greek meaning "things unpublished", a short often amusing story of an incident of private life (8) |
| RORT | Take wrongful advantage of an incident of suspect behaviour |
| PASSERBY | Pedestrian at the scene of an incident (6-2) |
| ONSCENE | At the site of an incident |
| ROSEMADDER | Pinkish pigment derived from the roots of a plant of the same name, used in the works of J. M. W. Turner (4,6) |
| LEATHERJACKET | Greyish-brown larva of certain craneflies of the genus Tipula that destroys the roots of grasses (13) |
| CARROT | A humble orange-hued root of an umbel, yet one said to help us to see in the dark, keep the brain cognitively smart, strengthen one's heart and encourage a donkey to pull a cart (6) |
| GUM | The firm flesh around the roots of the teeth |
| ASAFOETIDA | Brownish, bitter, resinous material obtained from the roots of some plants of the parsley family (10 |
| GUMS | Firm areas of flesh around the roots of the teeth (4) |
| TONSIL | Either of the two small masses of lymphoid tissue on each side of the root of the tongue |
| HERITAGE | The roots of one child's game wrapped up in the present (8) |
| ALVEOLI | Sockets or cavities in which the roots of the teeth are embedded. (7) |
| KAVA | What narcotic drink is made from the roots of a type of pepper plant? (4) |