Lord's servant or house! (5)

I believe the answer is:

manor

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

'lord's servant or' is the wordplay.
'lord's servant' becomes 'man' (I can't justify this - if you can you should believe this answer much more).
'man'+'or'='MANOR'

Can you help me to learn more?

(Other definitions for manor that I've seen before include "home territory" , "Lord's estate" , "Large country house with lands" , "Roman (anag.)" , "Big house - police district" .)

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