Greek agricultural goddess (7)
I believe the answer is:
demeter
'goddess' is the definition.
(I know that Demeter is a goddess)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for demeter that I've seen before include "Divine female" , "Olympian" , "Greek goddess of fertility - metered (anag)" , "Ancient Greek deity of fertility" , "Greek goddess of agriculture" .)