Juno's Greek counterpart (4)
I believe the answer is:
hera
'juno's greek counterpart' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for hera that I've seen before include "Regularly-deceived wife" , "Divine consort" , "Queen whose Roman counterpart was Juno" , "Divinity" , "Greek queen of Olympian gods" .)