| LINEN | Material of |
| PLASMA | Hot ionized material of which all stars are composed, made up of roughly equal numbers of positive ions and free electrons; sometimes regarded as the fourth state of matter (6) |
| WAX | Viscous or solid material of natural origin consisting largely of esters of fatty acids (3) |
| TWIG | Bud-bearing branchlet of a tree, used for the brush-end of a besom or nesting material of a squirrel's drey (4) |
| INSULATOR | Material of such low conductivity that the flow of current through it is negligible |
| SOURCE | Origin of material - of course, it's a variation (6) |
| GENOME | Complete set of genetic material of an organism |
| PANDA | Secretary admits switching genetic material of beastly type of Chinese native (5) |
| CHALK | Material of which the Needles, off the Isle of Wight, are formed (5) |
| DNA | Genetic material of nearly all forms of life, found in red nasturtiums! (1,1,1) |
| FABRIC | Felted, knitted or woven cloth; the material of a building, including its roof and walls; or, the structure of something, such as society (6) |
| SPUNSILK | Material of singular kind, full of witticisms (4,4) |
| DENIM | Material of many ripped articles of clothing |
| SUEDE | Material of a certain pair of shoes treasured by Elvis |
| WATTLEANDDAUB | Building material of interwoven twigs plastered, typically, with a mixture of clay, lime and water |
| ACRYLICONCANVAS | Materials of American artist Barnett Newman's striped 1967 painting Voice of Fire at the National Gallery of Canada: 3 wds. |
| DRIVEL | Material of no consequence |
| SKIN | Material of one's first suit? |
| IVORY | Smooth material of tusks (5) |
| EROTICA | Material of a sexual nature (7) |
