House of Roman origin? (5)

I believe the answer is:

manor

'house' is the definition.
(manor is a kind of house)

'of roman origin?' is the wordplay.
'of' indicates a hidden word.
'MANOR' is hidden in the letters of 'roman origin'.

(Other definitions for manor that I've seen before include "Large country house with lands" , "Police district (slang)" , "Nobleman's land" , "Lord's estate" , "house on estate" .)

I've seen this clue in the Evening Standard.

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