Nobility (7)
'nobility' is the definition.
(synonyms)
This is all the clue.
(Other definitions for aristocracy that I've seen before include "Upper classes" , "Upper class, nobility" , "those born ahead of others?" , "Noble class" , "Privileged class" .)
'nobility' is the definition.
(I know that peerage is a type of nobility)
This is the entire clue.
(Other definitions for peerage that I've seen before include "Group of lords" , "Noble title and rank" , "The whole of the British nobility" , "Nobles collectively" , "Aristocracy" .)