| Clue | Source | Date |
|---|---|---|
| Refining (iron) with heat (8) | ||
| Extracting metals by heating | ||
| Extracting (metal) from its ore (8) | ||
| Leader of squad softening and extracting metal | The Times Cryptic | 16 Oct 2023 |
| Extracting metal (from ore) by heat | The Times Concise | 10 Jul 2021 |
| Using a blast furnace for | Premier Sunday | 26 Feb 2017 |
| Refining ore | Canadiana | 07 Dec 2015 |
| Coke user's activity | ||
| Function of a blast furnace. |