| Answer | Crossword Clue |
|---|---|
| ENURE | Harden (to) (Var.) |
| ENURE | Harden (Var.) |
| ENURE | Harden: Var. |
| ENURE | Harden (var.) |
| ENURE | Toughen or harden (Var.) |
| ENURE | Harden (to) |
| INURE | Harden (to) |
| ENURE | Harden (to). |
| INURE | Harden to |
| MANGANESE | Grayish white metal used to harden steel. |
