Country measures (5)
I believe the answer is:
india
'country' is the definition.
(I know that India is a country)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for india that I've seen before include "Queen Victoria considered it the Jewel in the Crown" , "Second most populous country in the world" , "[TEST TEAM]" , "where to ring for help?" , "South Asian country" .)