Country houses we denied? Not entirely (6)
I believe the answer is:
sweden
'country' is the definition.
(country in Europe)
'houses we denied? not entirely' is the wordplay.
'not entirely' indicates the answer is hidden within the clue.
'SWEDEN' is hidden within 'houses we denied'.
(Other definitions for sweden that I've seen before include "N. European country" , "We send out to here, oddly" , "European kingdom" , "North European country" , "We send out to the northern state" .)