| DEADLYNIGHTSHADE | Common name for the poisonous plant Atropa belladonna (6,10) |
| DEADLY | Atropa belladonna is better known as ___ nightshade (6) |
| BELLADONNA | Atropa ___, also known as deadly nightshade (10) |
| HEMLOCK | The poisonous plant, Conium maculatum, used to make the drink that killed Socrates |
| HENBANE | The poisonous plant Hyoscyamus niger (7) |
| FOOLSPARSLEY | The poisonous white-flowered plant Aethusa cynapium |
| PRINCESS | Chinese historical drama based on The Poisonous Daughter by Qin Jian, The - Weiyoung (8) |
| ADDERS | They sum up the poisonous creatures! (6) |
| ASP | Case in point - giving up nicotine, the poisonous type (3) |
| TELSON | The poisonous tip of a scorpion tail |
| VENOM | What is the poisonous fluid of snakes and scorpions? (5) |
| ALMONDS | The poisonous gas hydrogen cyanide smells of what nutlike fruits? (7) |
| AMANITA | Genus of mushrooms that includes the poisonous fly agaric (7) |
| SPOT | Some of the poisonous potions produce a bit of a rash (4) |
| ATROPIN | The poisonous alkaloid found in deadly nightshade (7) |
| NIGHTSHADE | Term, alluding to the dark, narcotic, poisonous or soporific qualities of its berries, for a solanum, such as the belladonna or bittersweet (10) |
| AMARYLLIS | Alternative name for the belladonna lily (9) |
| ELLA | Name hidden in "belladonna" |
| ATROPINE | A pointer (anag) - belladonna (8) |
| UMBEL | Its flowers cluster among chrysanthemum, belladonna etc (5) |