Switzerland against importing international wine (7)
I believe the answer is:
chianti
'wine' is the definition.
(Chianti is an example)
'switzerland against importing international' is the wordplay.
'switzerland' becomes 'ch' (short for Confoederatio Helvetica, its Latin name).
'against' becomes 'anti' (I've seen this before**).
'importing' means one lot of letters goes inside another.
'international' becomes 'i' (abbreviation eg in IMF).
'ch'+'anti'='chanti'
'chanti' going around 'i' is 'CHIANTI'.
(Other definitions for chianti that I've seen before include "Tuscan red wine" , "Wine produced in Tuscany" , "I can hit for popular Italian wine" , "European wine" , "Italian offering" .)