| Clue | Source | Date |
|---|---|---|
| Said to bother a number causing concern (9) | ||
| Said to bother a number causing anxiety (9) | ||
| Perturbing (9) | ||
| Unsettling | LA Times Daily | 25 Mar 2022 |
| Unsettling | The Washington Post | 25 Mar 2022 |
| Disquieting | New York Times | 16 Mar 2020 |
| One beset by dreadful sorrow, the first person to be causing concern | ||
| Vexing | ||
| Troubling | ||
| Alarming | ||
| Alarming | ||
| Disturbing | ||
| Causing unease | ||
| Generating anxiety. |