Squirrels do it (4)
I believe the answer is:
gnaw
(Other definitions for gnaw that I've seen before include "Attack with teeth" , "Chew upon" , "Bite like a rodent" , "Chew at, work with teeth" , "What rodents typically do" .)
I believe the answer is:
gnaw
(Other definitions for gnaw that I've seen before include "Attack with teeth" , "Chew upon" , "Bite like a rodent" , "Chew at, work with teeth" , "What rodents typically do" .)