Greek goddess encountered in symbol of Diana? (7)
I believe the answer is:
demeter
'symbol of diana?' is the definition.
'Demeter' can be an answer for 'diana?' (thesaurus). I'm not certain of the 'symbol of' bit.
'greek goddess encountered in' is the wordplay.
'greek goddess' becomes 'deer' (I can't justify this - if you can you should give a lot more credence to this answer).
'encountered' becomes 'met' ('meet' can be a synonym of 'encounter').
'in' means one lot of letters goes inside another.
'deer' enclosing 'met' is 'DEMETER'.
Can you help me to learn more?
(Other definitions for demeter that I've seen before include "Greek goddess of fertility - metered (anag)" , "Gr. goddess of agriculture, mother of Persephone" , "Greek goddess of agriculture" , "Divine female" , "Olympian" .)