Related Clues:
- Miners' leader leaving own entrance to mine
- Miner's way out
- Shaft used as a mine entrance
- Almost horizontal shaft into a mine
- Using a key it follows there is an opening
- Opening financial analysis ignored union leader
- Opening - using a key, it follows
- Opening into a mine
- eg National, Hayward
- A key, it is for opening
- Notice something opening
- Passage into mine
- Read about escaping with it by the passage
- Theatre area
- Opening notice is just the thing