| Clue | Source | Date |
|---|---|---|
| One not to beat | New York Times | 21 Aug 2020 |
| Topic no longer worth discussing | The New Yorker | 04 May 2020 |
| Thing that's pointless to beat | Wall Street Journal | 17 Jun 2019 |
| Thing that's pointless to beat | ||
| Beating one won't get you anywhere | ||
| Beating one won't get you anywhere | ||
| Useless project, figuratively | ||
| Exhausted issue | ||
| Useless project | ||
| Something not to be beaten |