Spy-fi figure (4)

I believe the answer is:

mole

(Other definitions for mole that I've seen before include "one in the Underworld?" , "Small spot - small mammal" , "Spot - burrowing mammal" , "Dark spot on skin or burrowing animal" , "Skin blemish and burrowing animal" .)

I've seen this clue in the LA Times.

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