Country air - coat needs changing (7)
I believe the answer is:
croatia
'country' is the definition.
(Croatia is an example)
'air coat needs changing' is the wordplay.
'needs changing' indicates an anagram (I've seen this in other clues).
'air'+'coat'='aircoat'
'aircoat' with letters rearranged gives 'CROATIA'.
(Other definitions for croatia that I've seen before include "Balkan republic, capital Zagreb" , "Republic in SE Europe, capital Zagreb" , "Land in South-East Europe" , "Adriatic nation" , "Balkan country, capital Zagreb" .)