| Clue | Source | Date |
|---|---|---|
| If you have to (3 wds.) | ||
| CHAIN-PIN (3 words) | ||
| Ah, in Northern Ireland politically correct leaders about to do so if necessary! (2,1,5) | ||
| If all else fails | Universal | 15 Oct 2023 |
| If all else fails | Universal | 24 Mar 2021 |
| If all else fails | LA Times Daily | 13 Jan 2019 |
| If all else fails | The Washington Post | 13 Jan 2019 |
| If all else fails | ||
| Given no other option | Newsday | 13 Oct 2018 |
| If absolutely necessary | Newsday | 26 Feb 2017 |
| If absolutely necessary | ||
| At crunch time | ||
| If absolutely necessary | ||
| When push comes to shove | ||
| *If absolutely necessary | ||
| If nothing else works | ||
| *If absolutely necessary | ||
| If nothing else works | ||
| If all else fails | ||
| If there's no other way | ||
| If there's no other way | ||
| If need be | ||
| As the last resort | ||
| As the last resort | ||
| If need be | ||
| If all else fails | ||
| At the crucial moment | ||
| At the crucial moment | ||
| During emergency conditions | ||
| By emergency |