The goddess of hate? (4)
I believe the answer is:
thea
'the goddess' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'of hate?' is the wordplay.
'of' is an anagram indicator (the answer comes from or 'of' the letters).
'hate' with letters rearranged gives 'THEA'.
Can you help me to learn more?
(Other definitions for thea that I've seen before include "Female name meaning 'goddess'" , "evergreen shrubs?" , "Plant" , "... Girl" , "Girl's name, tea genus" .)