I hope it changed a country (8)
I believe the answer is:
ethiopia
'country' is the definition.
(I know that Ethiopia is a country)
'i hope it changed a' is the wordplay.
'changed' indicates an anagram.
'i'+'hope'+'it'='ihopeit'
'ihopeit' is an anagram of 'ethiopi'.
'ethiopi'+'a'='ETHIOPIA'
(Other definitions for ethiopia that I've seen before include "Northeast African country" , "East African country" , "Country formerly called Abyssinia" , "Strife-torn NE African country, capital Addis Ababa" , "Landlocked Afr. country" .)