Related Clues:
- Underground pipe
- Test pipe?
- Plymouth --
- TV channel?
- Old ship seen on English Channel?
- Ziti form
- Underground cylinder
- Unit of lipstick
- Hollow pipe
- Try leaving buttery conduit
- Lozenge-shaped design
- Toilet paper comes wrapped around one
- London's underground, informally
- Sock option
- Train needs energy except for reversing