Related Clues:
- Tunnel excavator
- Facial mark
- Skin imperfection
- Beauty mark or burrowing animal
- Tunnel-creating creature
- Roots of sow thistle are dedicated gardener's enemy
- Blind burrower
- Insidious insider
- Hoer's target
- Sow thistle, for one
- Tunneling mammal
- 18-Down, at times
- 'The Wind in the Willows' figure
- Tend the garden, in a way
- Invader from below