Noble position (7)
I believe the answer is:
earldom
'noble position' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for earldom that I've seen before include "Peer's rank" , "Norfolk or Wessex, for example" , "Essex?" , "Noble's lands or rank" , "Aristocratic domain above a viscountcy but below a marquessate" .)