The phrase "to clean the ears" means to remove dirt, wax, or any other stuff that may have accumulated inside the ear to keep it healthy and functioning well.
Sentences with «to clean the ears»
Remove foreign bodies carefully with your fingers, then clean the ear with mineral oil. (animals.howstuffworks.com)
Other routine grooming tasks include cleaning their ears regularly and checking them for any problems. (dogbreedanswers.com)
If you're using cleaned ears of corn, simply wrap each ear in foil and grill. (farmflavor.com)