Possible Clues:

• Peer's place, perhaps
• This makes one entitled to become a model R.A.
• Entitlement to be a model RA
• What Macmillan eventually had, nasty ordeal ending in defeatism
• Derby's starter had one old mare put out
• What could make me a lord?
• Lands of a nobleman
• Title, or medal freshly cast?
• Count's bailiwick
• Essex, for example