Scandinavian kingdom (6)
I believe the answer is:
sweden
'scandinavian kingdom' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for sweden that I've seen before include "Home of ABBA, Volvo and smorgasbord" , "4's neighbour" , "Stockholm is the capital" , "We send to Scandinavian country" , "European kingdom" .)