Crossword Clue:

Grind with the teeth

AnswerCrossword Clue
CHEWGrind with the teeth
GNASHGrind the teeth
GNASHGrind (the teeth).
GNASHGrind the teeth.
GNASHGrind (the teeth)
GNASHGrind, as the teeth
GNASHGrind the teeth in anger.