Match for nobleman (4)
I believe the answer is:
peer
I believe this is a double definition.
'match' is the first definition.
(synonyms)
'nobleman' is the second definition.
(peer is a kind of nobleman)
'for' acts as a link.
(Other definitions for peer that I've seen before include "Look closely at titled man?" , "Look hard through narrowed eyes" , "Struggle to look" , "Look closely at lord" , "in another place?" .)