| Clue | Source | Date |
|---|---|---|
| 36-inch ruler's standards of judgement? (10) | ||
| Three-foot measuring tools | Universal | 01 Feb 2024 |
| Measures beginning to suppress insect in enclosed areas | ||
| Measuring devices | Eugene Sheffer | 18 Jun 2020 |
| Standards of judgment | ||
| Standards | ||
| They have three feet | ||
| Criteria |