Sense organs (4)
(Other definitions for eyes that I've seen before include "Scans" , "Looks at - organs" , "Paradoxical title of 1999 Kubrick film" , "Parts of needles" , "(Paradoxical?) film with Cruise and Kidman" .)
'sense organs' is the definition.
(ear is a kind of sense organ)
This is all the clue.
(Other definitions for ears that I've seen before include "Auditors" , "Listening organs" , "Auricles" , "Heads of corn" , "Seed-bearing parts of corn" .)