| LEHR | Kiln used for annealing in the manufacture of glass (4) |
| LEHRS | Kilns used for annealing glass (5) |
| OAST | Roasted and toasted! A kiln used for drying hops! (4) |
| SILICA | Dioxide of silicon used in the manufacture of glass and ceramics (6) |
| FIRE | Used for heat, light, cooking, forging, smelting and annealing, a state of combustion by oxidisation, only naturally possible on Earth (4) |
| KILN | Oven for firing pottery, drying hops/malted barley, annealing glass, heating limestone or, traditionally, burning kelp (4) |
| CHIP | Tiny wafer of semiconductor material used in the manufacture of electronic equipment (4) |
| ACID | White crystalline compound occurring naturally in many plants, used in the manufacture of aspirin, fungicides etc. (9,4) |
| COAL | Material used in the manufacture of bricks and ceramics (4) |
| RUBY | What precious stone is used in the manufacture of lasers? (4) |
| LEER | Annealing oven |
| OASTHOUSE | A kiln used to dry hops used in brewing beer (4,5) |
| OASTS | Kilns used for drying hops (5) |
| BAYBERRYWAX | Substance removed from the surface of the fruit of the shrub Myrica faya and used in the manufacture of candles |
| MUFFLE | Inner chamber of a kiln used to fire pottery |
| ROASTS | Right kilns used as prepares meat for eating |
| AMMONIA | Colourless pungent gas composed of one atom of nitrogen bonded to three atoms of hydrogen, chiefly used in the manufacture of fertilisers and nitric acid (7) |
| AMBERGRIS | Waxy substance, secreted by the intestinal tract of the sperm whale, used in the manufacture of perfumes (9) |
| BRIAR | The root of what shrub is used in the manufacture of tobacco pipes? (5) |
| SALICYLIC | White crystalline compound occurring in numerous plants and prepared commercially from sodium phenol, used in the manufacture of aspirin, fungicides etc. (9,4) |
