| PORTLANDCEMENT | Building material produced by heating limestone and clay minerals in a kiln to form clinker and then grinding the clinker with the addition of gypsum (8,6) |
| CLAY | Earthy substance baked in a kiln to make terracotta, flowerpots, ocarinas, tiles, pottery and bricks (4) |
| LIME | A caustic substance (Ca(OH)2) produced by heating limestone. |
| CEMENT | Building material made from limestone and clay |
| HEWER | Miner who loosens rock and minerals in a mine (5) |
| MARL | A fine-grained sedimentary rock consisting of clay minerals, calcite or aragonite, and silt |
| KILN | Oven for firing pottery, drying hops/malted barley, annealing glass, heating limestone or, traditionally, burning kelp (4) |
| CARAMEL | It's produced by heating sugar until brown (7) |
| OASTHOUSE | A building with a conical roof containing a kiln to dry hops (4,5) |
| TOAST | Had a little time to use a kiln to wish one good health (5) |
| OAST | Boasts about having a kiln to dry the hops in |
| PLACER | Alluvium from which gold particles can be washed; one who puts clay pieces into a saggar, ready for firing in a kiln; or, a fence, dealing in stolen goods (6) |
| COMO | Located in northern Italy, near Milan, this lake is surrounded by limestone and granite mountains (4) |
| LACTICACID | Material produced by the body during extreme exertion, leading to burning sensation in active muscles (6,4) |
| DOLOMITE | A mineral like limestone, and a Triumph car of the 1970s |
| TALC | A soft clay mineral, applied to the skin to absorb moisture (4) |
| CHEMICAL | Material produced by a reaction involving changes in atoms or molecules (8) |
| DENIER | It's a measure of the material produced by one of those dismissing the truth (6) |
| NUTRIENTS | Vitamins and minerals in foods essential to life and health (9) |
| ISOTONIC | (Of an energy drink) containing salts and minerals in the same concentration as in the body |
