Refurbished ancestral royal house (9)
I believe the answer is:
lancaster
'royal house' is the definition.
(Lancaster is an example)
'refurbished ancestral' is the wordplay.
'refurbished' indicates an anagram.
'ancestral' anagrammed gives 'LANCASTER'.
(Other definitions for lancaster that I've seen before include "15th Century house" , "World War Two bomber" , "historic city" , "WW2 bomber; city" , "House involved in the Wars of the Roses" .)