| Answer | Crossword Clue |
|---|---|
| ANNEAL | Harden as glass |
| SET | Harden, as glue |
| SET | Harden, as plaster |
| SET | Harden, as concrete |
| SET | Harden, as cement |
| SETFAST | Harden, as glue |
| SEASON | Harden, as troops |
| indurated | to make hard; harden, as rock, tissue, etc. |
| indurate | to make hard; harden, as rock, tissue, etc. |
| indurates | to make hard; harden, as rock, tissue, etc. |
| harden | inure to unfavorable environmental conditions (as cold) often used with off harden off seedlings before transplanting |
| baking | (of the sun or other agency) Subject (something) to dry heat, esp. so as to harden it |
