Grand assortment in country residence (6)
I believe the answer is:
grange
'country residence' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'grand assortment' is the wordplay.
'grand' becomes 'g' (G is short for grand as in a thousand).
'assortment' becomes 'range' (I can't explain this - if you can you should believe this answer much more).
'g'+'range'='GRANGE'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for grange that I've seen before include "Country house/farm" , "Country house with attached farm buildings" , "Country house and surrounding buildings" , "US lodge" , "farming complex" .)