Answer: gnawon

AnswerCrossword Clue
GNAWON

Eat at

GNAWON

Eat at, as one's conscience

GNAWON

Eat, like a rat

GNAWON
Eat away at, like a rat
GNAWON
Chomp at
GNAWONBite with repeated effect.
GNAWONChew, as a steak bone