Related Clues:
- They're seen about the gin to be running
- They may be seen to be running about gin
- They're seen to run about the gin
- They're seen about the gin to do the driving
- Projects for beavers
- Train leaders
- Gas, oil, et al
- Machines
- Source of power
- Blocks (up)
- Electricity generators
- Blockades, of a sort
- Machines that convert power into motion
- Beavers' constructs
- Purring car parts