| MULCH | Mixture of organic matter such as leaves, bark and straw used in horticulture to enrich or insulate soil (5) |
| BUCKEYE | Official state tree of Ohio, whose leaves, bark and fruit are all highly toxic (7) |
| SENNIT | Plaited straw used in making hats (anagram of TENNIS) |
| COMPOST | Mixture of organic residues used as a fertiliser (7) |
| FIBRE | Solid tissue, such as leaves, feathers, wool or chitin (5) |
| YARDWASTE | Compostable material such as leaves and grass clippings: 2 wds. |
| CORNCOB | A mixture of compressed clay and straw used for building walls |
| CHAFF | What is chopped hay and straw used as fodder? (5) |
| COB | Clay and straw used for building nut (3) |
| MATERIAL | General word for matter such as baize, candlewick, crepe paper, felt, or tweed; songs or jokes comprising a performer's act; or, facts, ideas and notes for use in creating a novel (8) |
| GAS | Word, based on "chaos" and coined by Jan Baptista van Helmont, for a fundamental state of matter, such as the carbon dioxide identified by said chemist; or, in another sense, empty boastful talk or bl |
| SHAPE | Physical property of matter such as gas, liquid, plasma or solid; or, informally, a mess or shambles (5) |
| STATE | Physical property of matter such as gas, liquid, plasma or solid; or, informally, a mess or shambles (5) |
| RUCHE | A flounce, frill or ruffle whose name derives from "tree bark" or from "beehive", latterly in allusion to the plaits of straw used to make a skep (5) |
| GASES | Substances or states of matter such as atomic numbers 2, 10 and 18 (5) |
| CLOGGED | Blocked with an accumulation of thick, wet matter, such as mud in the tread of your wellies! (7) |
| COAL | Black or brown combustible mineral formed by decomposition of organic matter and used as fuel |
| WISPS | Flocks of snipe; or, hand-plaited bundles of hay or straw used as part of a horse's traditional grooming kit (5) |
| INSECTS | Chimps eat seeds, fruit, leaves, bark, honey, flowers, and ___. They also hunt for meat such as small monkeys and antelope |
| BRAN | Husks of cereal grain used in calico printing, as a traditional forage for working horses or to enrich bread, treacle tarts, muffins or muesli (4) |