Crossword Genius

Posh homes dad does up (7)

Ross

I believe the answer is:

palaces

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'posh homes' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Perhaps there's a link between them I don't understand?

'dad does up' is the wordplay.
'dad' becomes 'pa' (synonyms).
'does up' becomes 'laces' (I can't justify this - if you can you should believe this answer much more).
'pa'+'laces'='PALACES'

Can you help me to learn more?

(Other definitions for palaces that I've seen before include "Royal residences" , "kings and queens here?" , "Offical residences of sovereigns" .)

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