Hera's counterpart (4)

I believe the answer is:
juno
'hera's counterpart' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for juno that I've seen before include "Roman queen of the gods, wife and sister of Jupiter" , "She played with the Paycock" , "Fourth largest known asteroid" , "Jupiter's wife" , ". . . . and the Paycock (Sean O'Casey)" .)