Roman destroyed hall (5)
I believe the answer is:
manor
'hall' is the definition.
(manor is a kind of hall)
'roman destroyed' is the wordplay.
'destroyed' indicates anagramming the letters.
'roman' is an anagram of 'MANOR'.
(Other definitions for manor that I've seen before include "Big house - police district" , "Roman (anag.)" , "Police district (slang)" , "Large country house with lands" , "house on estate" .)