Related Clues:
- Amazon, for one
- Tunnel digger
- Hill maker
- Crumb scavenger
- Vermicide : worm :: formicide : ___
- Aesopian saver
- A kind of one ends each of this puzzle's four longest answers
- Hill dweller?
- Dirt excavator, at times
- Termite
- Pest with ''high hopes''
- Fumigation target
- Bug found everywhere
- Lawn tunneler
- Tunnel dweller