| Answer | Crossword Clue |
|---|---|
| TIN | Vital war metal. |
| ZINC | Vital bluish-white metal. |
| IRON | Vital war necessity. |
| METAL | Vital war material. |
| STEEL | Vital war material. |
| SHIPBUILDERS | Vital war workers. |
| TIN | Vital war material. |
| IMMIGRATION | Vital post-war problem. |
| GASMASK | Vital World War I issue |
| RAF | Vital factor in World War II. |
