A match for a noble lord (4)
I believe the answer is:
peer
This clue is a triple definition!
'a match' is the first definition.
(I know that match can be written as peer)
'for' acts as a link.
'a noble' is the second definition.
(peers are members of the nobility)
'lord' is the third definition.
(I know that peer is a type of lord)
(Other definitions for peer that I've seen before include "Person of equal standing" , "unelected politician" , "One entitled" , "Look closely - nobleman" , "Lord of the realm" .)