European married in Home Counties (5)
I believe the answer is:
swede
'european' is the definition.
(Swede is an example)
'married in home counties' is the wordplay.
'married' becomes 'wed' (similar in meaning).
'in' is an insertion indicator.
'home counties' becomes 'se' (Home Counties in the South East of England).
'wed' put into 'se' is 'SWEDE'.
(Other definitions for swede that I've seen before include "Foreigner" , "Cattle fodder" , "Sort of turnip - one from Scandinavia?" , "plant" , "Nobel for one" .)