Related Clues:
- They work for competing labels
- Embedded agents
- Hill-building mammals
- Harbor protectors
- Earthworm trappers
- Beauty marks
- Projecting structures needing black strings?
- Some facial beauty marks
- Embedded spies
- Traitorous spies
- Lawn-ruining pests
- Lawn burrowers
- Lawn tunnelers
- Plants or animals using secret passages
- Digging pests