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 anagramming the letters.
'behind' means one lot of letters go next to another.
'husband' becomes 'h' (abbreviation).
'raygun' is an anagram of 'ungary'.
'ungary' put 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" .)