| CRUCIBLE | In metallurgy, the hollow or basin at the bottom of a furnace in which molten metal collects (8) |
| FORGE | Name a furnace in which metal is heated before shaping (5) |
| HEARTH | Base of a furnace where molten metal collects (6) |
| PLUNGEPOOL | Deep basin at the foot of a waterfall (6,4) |
| KILNS | Furnaces in which links are forged (5) |
| ABSTAIN | Keep dry basin at ground (7) |
| ABSTAINS | Keeps dry basins at complex (8) |
| SPRUE | Word for the first thin pickings of asparagus; or, a channel by which molten metal is poured into a mould (5) |
| BLOWPIPE | Long tube by means of which molten glass is blown into shape (8) |
| BRASSAGE | Historic period in metallurgy |
| PEDESTAL | Place for idol, or basin (8) |
| HAMMERED | Beaten hollow or had me harmed ? (8) |
| BARNOWLS | Known collectively as a stable and nesting in outbuildings, hollows or purpose-built boxes, silent-hunting birds with heart-shaped faces (4,4) |
| DIMPLE | A small hollow or dent in the flesh, especially in the cheeks or chin |
| PLUG | Bung for a sink or basin; or, a seedling grown in an individual compartment of a tray (4) |
| COOMBE | A short hollow or valley on a hillside or a coastline, especially in southern England (6) |
| HEATER | He took a meal right at the end of a furnace |
| CLINKER | Clerk in dismay at the waste of a furnace (7) |
| VOLCANO | An opening in the earth's crust from which molten lava, rock fragments, ashes, dust and gases are ejected (7) |
| CLUE | A grotto or hollow; or, pronounced "kah-vay", a schoolchild's holla meaning "beware!"/"look out" to warn chums of an approaching teacher (4) |
