Distinguished house or Roman ruin (5)

I believe the answer is:

manor

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'distinguished house' is the definition.
'manor' can be an answer for 'house' (manor is a kind of house). I am unsure of the 'distinguished' bit.

'roman ruin' is the wordplay.
'ruin' indicates anagramming the letters.
'roman' anagrammed gives 'MANOR'.

'or' is the link.

Can you help me to learn more?

(Other definitions for manor that I've seen before include "home territory" , "lord's home" , "Operational base" , "Lord's estate" , "Large country house for Roman" .)

I've seen this clue in the Evening Standard.

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