| Clue | Source | Date |
|---|---|---|
| Wackadoo | New York Times | 15 Jan 2023 |
| Wacko | The Washington Post | 11 Jul 2021 |
| Wacko | LA Times Daily | 11 Jul 2021 |
| Off one's rocker, say | ||
| Balmy | The Chronicle of Higher Education | 05 Oct 2018 |
| Balmy | ||
| Bonkers | Eugene Sheffer | 26 Aug 2016 |
| Bananas | ||
| Crackers | ||
| Cockeyed | ||
| Bats | ||
| Cracked | ||
| Off one's trolley | ||
| Bonkers | ||
| Bonkers | ||
| Cuckoo | ||
| Off one's trolley |