Juliet's predecessor somewhere in Asia (5)
I believe the answer is:
india
'in asia' is the definition.
('India' is part of 'asia')
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 "Subcontinent of Asia south of Himalayas" , "Gandhi's country" , "Eastern country" , "One preceding Juliet" , "Populous Asian country" .)