Radio he's retuned in old country (8)
I believe the answer is:
rhodesia
'old country' is the definition.
(former country)
'radio he's retuned' is the wordplay.
'radio he's' anagrams to 'RHODESIA'.
Though, I am unsure how the anagram is indicated.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for rhodesia that I've seen before include "Old state" , "Zimbabwe, formerly" , "former state" , "place once overseen by Smith" , "Salisbury was its capital" .)