Country dancing needs to include wife (6)
I believe the answer is:
sweden
'country' is the definition.
(Sweden is an example)
'dancing needs to include wife' is the wordplay.
'dancing' indicates an anagram.
'to include' means one lot of letters goes inside another.
'wife' becomes 'w'.
'needs' is an anagram of 'seden'.
'seden' enclosing 'w' is 'SWEDEN'.
(Other definitions for sweden that I've seen before include "Baltic country" , "Its capital's Stockholm" , "Stockholm's country" , "We send out to here, oddly" , "North European country" .)