| Clue | Source | Date |
|---|---|---|
| Union of train drivers | The Telegraph Cross Atlantic | 10 Aug 2025 |
| Train drivers' union | Mirror Tea Time | 04 May 2025 |
| Railway union | Mirror Tea Time | 30 Dec 2024 |
| Train driver's union | Mirror Tea Time | 24 Sep 2024 |
| Train driver's union | Mirror Tea Time | 28 Jul 2024 |
| Train drivers' union - initially (1, 1, 1, 1, 1) | ||
| Trade union for train drivers whose General Secretary is Mick Whelan | Mirror Quiz | 25 Feb 2024 |
| Mick Whelan is General Secretary of this train-drivers' union (5) |