Related Clues:
- Sockets; river mouths
- Retail branches
- Unfashionable leases for shops
- Allow us to wander round the markets
- Has more tenants than escape hatches
- Outlets for various fuels
- Set lout about shops
- Tear channels
- Chimney pipes
- Fireplace smoke escapes through them
- Factory stores
- Sources of tears
- First three characters in 2 down get permits from the branches
- Heating system network
- Sooty vents