Related Clues:
- Armoured military vehicles
- Breathing tube for under-water swimmer
- Swimmer's breathing device
- Fish have them
- That'll help you get the wind down when you're down
- Fish propellers
- Gas units
- Fish parts
- The tube for below-surface travel
- King going in to be stertorous, having left tube
- King entering sound asleep left for a breather
- Tube supplying air to swimmer
- Tube for swimmer
- Garment worn by divers etc
- Swimmer's breathing aid