Raygun dancing behind husband in European country (7)
I believe the answer is:
hungary
'european country' is the definition.
(country in Europe)
'raygun dancing behind husband' is the wordplay.
'dancing' indicates an anagram.
'behind' is a charade indicator (letters next to each other).
'husband' becomes 'h' (abbreviation).
'raygun' with letters rearranged gives 'ungary'.
'ungary' after 'h' is 'HUNGARY'.
'in' acts as a link.
(Other definitions for hungary that I've seen before include "It's capital is Budapest" , "vizsla from here?" , "Country where Magyar is spoken" , "East European country" , "One member of NATO" .)