Noble and quiet always (4)
I believe the answer is:
peer
'noble' is the definition.
(peer is a kind of noble)
'quiet always' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano').
'always' becomes 'eer' (poetic way of saying ever).
'p'+'eer'='PEER'
'and' is the link.
(Other definitions for peer that I've seen before include "Aristocrat" , "Fellow" , "Person of equal standing" , "in another place?" , "Look; earl" .)