House, as central, demolished (9)
I believe the answer is:
lancaster
'house' is the definition.
(royal house)
'as central demolished' is the wordplay.
'demolished' indicates anagramming the letters.
'as'+'central'='ascentral'
'ascentral' is an anagram of 'LANCASTER'.
(Other definitions for lancaster that I've seen before include "House involved in the Wars of the Roses" , "Say Crouchback" , "high flyer?" , "University" , "9 [HOUSE]" .)