Grounds worth seeing one hears (5)
I believe the answer is:
sites
'hears' is the definition.
The definition and answer can be both to do with perception as well as being verbs in their -s form.
Perhaps there's an association between them I don't understand?
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for sites that I've seen before include "internet locations" , "Spots" , "Locations or positions, as for building" , "Locates" , "Is set (anag)" .)