| Clue | Source | Date |
|---|---|---|
| "So there's just one little thing ..." | ||
| Small fact in a secondary field of study? | ||
| It's not important | Newsday | 12 Dec 2020 |
| Fine point within a secondary field? | Universal | 06 Sep 2020 |
| Oft-overlooked thing | ||
| Often overlooked thing | ||
| It hardly matters | ||
| It's not important |