| Clue | Source | Date |
|---|---|---|
| Strangles Henry Lee first and totters out | ||
| Strangles LH then totters off! (9) | ||
| Strangles | Mirror Quick | 25 Jan 2024 |
| Smothers car pedals | Mirror Cryptic | 25 Jan 2024 |
| Accelerating devices (9) | ||
| Gas valves in engines | Universal | 05 Jun 2021 |
| Features of engines, extremely tough, dry in parts | ||
| Strangles | Canadiana | 15 Oct 2018 |
| Chokes | Wall Street Journal | 01 Feb 2016 |
| Flow regulators | ||
| Chokes |