| TERRAFIRMA | The solid earth |
| ROCK | In geology, the naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed. (4) |
| LITHO | *___sphere, the solid earth |
| FIRMA | Terra -, the mainland, solid earth (5) |
| GROUND | The solid surface of the Earth (6) |
| IDEA | Chunk of solid earth that's formed in the head? (4) |
| TERRA | ___ firma, solid earth (5) |
| SNOW | The solid form of water that crystallizes in the atmosphere and falls to Earth (4) |
| CRUSTAL | Relating to the solid exterior of the earth (7) |
| ISLAND | Man, for example, lives on solid earth (6) |
| LESPAUL | American jazz guitarist and pioneer in the development of the solid-body electric guitar (3,4) |
| GAS | The solid and liquid states, as found in the flowering plant agastache! (3) |
| NUCLEUS | Meaning "little nut", a kernel; the solid centre of a comet's head; or, the dense core of an atom (7) |
| ICE | Water in the solid state (3) |
| HOARD | Put nothing in the solid store (5) |
| UCLA | Sch. with the Solid Gold Sound marching band |
| PAUL | Les, U.S. guitarist who created the solid-body electric guitar (4) |
| STEARIN | Crystalline substance, the solid part of a fat (7) |
| GRAPPA | Italian brandy made from the solid remains of grapes after pressing (6) |
| DRYICE | Popular name for the solid form of carbon dioxide (3,3) |
