| AXIL | Unknown number are sick about angle of plant and stem |
| CORNER | Scorn erroneously about angle |
| TRIGONOMETRY | When changing tyre, motoring is all about angles (12) |
| AVAIL | Make use of Virginia and be sick about it (5) |
| HUMUS | Organic component of soil, formed by the decomposition of plant and animal matter (5) |
| CYTOLOGY | Scientific study of the structure, functions etc. of plant and animal cells (8) |
| TAPHONOMY | Branch of palaeontology concerned with the processes of plant and animal fossilisation (9) |
| FLYLEAF | Insect on part of plant and page of book (7) |
| RAINFOREST | Area of high rainfall with rich variety of plant and animal life (10) |
| RESTCURE | Taken by those who are sick and tired of work? |
| EMAIL | Half of them are sick of computer messaging (1-4) |
| MALLOW | Plant with hairy leaves and stem, and pinkish flowers (6) |
| CATCHACOLD | Lose one's investment and feel sick about it? (5,1,4) |
| PENSTEMON | "Valued for their racemes of foxglove-like flowers, ____s are elegant and reliable border perennials" (RHS Encyclopedia of Plants and Flowers) |
| ANGELICA | Umbelliferous plant whose aromatic seeds, leaves, and stems are used in medicine and cookery |
| HISTOLOGY | Study of the microscopic structures of plant and animal tissue, also known as microanatomy (9) |
| HUMIC | Of, or relating to, natural organic compounds in the soil, formed from the decomposition of plant and animal residues (5) |
| BIOME | Community of plant and animal life |
| NATURAL | - history; scientific study of plant and animal life (7) |
| NATURE | Essential character of plant and animal life (6) |
