| Clue | Source | Date |
|---|---|---|
| It can be permitted for everything to require to be paid (9) | ||
| Aboveboard | LA Times Daily | 28 Mar 2019 |
| Aboveboard | The Washington Post | 28 Mar 2019 |
| Everyone's in debt keeping lab working: it's permitted | ||
| Aboveboard | ||
| Permissible | The Times Concise | 11 Apr 2018 |
| Permissible | Irish Times Simplex | 19 Nov 2015 |
| Kosher | New York Times | 25 Jul 2015 |
| Kosher | ||
| Not banned | ||
| O.K. | ||
| Legitimate | ||
| Not improper. |