| Clue | Source | Date |
|---|---|---|
| Diligent | Newsday | 25 Apr 2020 |
| Hard-working souls due to appear lazy | The Times Cryptic | 24 May 2017 |
| Hard-working souls due to appear lazy | ||
| Indefatigable | The Chronicle of Higher Education | 09 Jan 2015 |
| Indefatigable | ||
| Diligent | ||
| Diligent | ||
| Persevering | ||
| Steadily industrious. | ||
| Diligent; persevering. | ||
| Assiduous. |