| FORESTRY | Can be for tyres, or the conservation of trees, etc (8) |
| TRACTION | Grip provided by tyres or the soles of shoes, eg. |
| CAMBIUM | Layer of tissue between the wood and bark of trees, etc. (7) |
| TWIGLOO | A temporary shelter made from the branches of trees etc. (7) |
| CLINCHER | A hugger or squeezer; a tool, tyre or other thing that grips/pinches; or, an argument, fact, score etc, that is settled conclusively or decisively (8) |
| GOODYEAR | Fine period for tyre company (8) |
| BINDWEED | Plant that twines itself round other plants, trees etc (8) |
| GREENERY | Trees etc depicted in lines by English writer (8) |
| PRITCHARD | US zoologist commonly known for his 40 year campaign for the conservation of turtles, Peter ... |
| PICTURERESTORER | Specialist in the conservation of paintings (7,8) |
| RSPB | UK charitable organisation founded in 1889 for the conservation of wild birds (4) |
| CHAINSAW | Cutter used on trees, etc |
| CASINGS | Housings of clocks; outer covers of tyres; or, skins of sausages (7) |
| TEA | It can be for two or for the Tillerman |
| TREAD | A footfall, step or tramp; one's gait; or, the part of a tyre or a shoe's sole that touches the ground (5) |
| RESERVE | A tract of land set aside for the protection and conservation of wildlife (7) |
| NEAR | ___ Threatened, classification used by the by the International Union for Conservation of Nature (4) |
| PUMPS | Devices such as Archimedean screws, or pistons for inflating tyres or toy balloons; or, plimsolls (5) |
| LEAST | The conservation status of the vervet monkey is at ___ concern. |
| NATURE | The International Union for Conservation of ______ (IUCN) is a network of environmental organizations founded in 1948 (6) |
