Answer:

MOLE

Answer	Crossword Clue
MOLE	Burrowing mammal
MOLE	Double agent
MOLE	Lawn burrower

MOLE	CIA problem
MOLE	Lawn problem
MOLE	Yard tunneler
MOLE	Suburban pest
MOLE	Lawn wrecker
MOLE	Burrower
MOLE	Skin blemish
MOLE	Tunnel excavator

MOLE	Spy in the works
MOLE	Tunnel specialist
MOLE	Tunnel digger
MOLE	Tunneling mammal
MOLE	Corporate-security concern
MOLE	Earthworm predator
MOLE	Espionage insider
MOLE	Spy spying on spies

MOLE	Tunnel maker
MOLE	Underground figure
MOLE	Underground operator
MOLE	Beauty mark
MOLE	Company plant?
MOLE	Infiltrator
MOLE	Leak source, perhaps
MOLE	Office plant

MOLE	Mexican sauce flavored with chocolate
MOLE	Whacked arcade critter
MOLE	Security concern
MOLE	Pesky yard critter
MOLE	Human plant?
MOLE	Subterranean critter
MOLE	Long-term spy
MOLE	ABC game show baddie

MOLE	CIA infiltrator
MOLE	Backyard burrower
MOLE	Tunneling pest
MOLE	Spy spying on a spy
MOLE	Underground burrower