Goddess subsequently seen in drunks meetings (6)
I believe the answer is:
athena
'goddess' is the definition.
(I've seen this before)
'subsequently seen in drunks meetings' is the wordplay.
'subsequently' becomes 'then' ('then' can be a synonym of 'subsequently').
'seen in' means one lot of letters goes inside another.
'drunks meetings' becomes 'aa' (I can't explain this - if you can you should believe this answer much more).
'then' put into 'aa' is 'ATHENA'.
Can you help me to learn more?
(Other definitions for athena that I've seen before include "Greek goddess of wisdom etc." , "Greek goddess of a capital city" , "wise but fierce goddess" , "One-time goddess" .)