Country doctors are OK (5)
I believe the answer is:
korea
'country' is the definition.
The definition and answer can be both locations as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'doctors are ok' is the wordplay.
'doctors' is an anagram indicator.
'are'+'ok'='areok'
'areok' is an anagram of 'KOREA'.
Can you help me to learn more?
(Other definitions for korea that I've seen before include "Divided Asian peninsula" , "region in Asia" , "Divided Asian country" , "East Asian peninsula" , "Divided territory" .)