Proper ceremony? That's what we hear (5)
I believe the answer is:
right
'hear' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for right that I've seen before include "Privilege" , "Correct - claim allowed" , "Legal entitlement" , "True - just claim" , "Correct; appropriate" .)