Athenian Club's reduced joining fees (8)
I believe the answer is:
socrates
'athenian' is the definition.
(I know that Socrates is a athenian)
'club's reduced joining fees' is the wordplay.
'club's reduced' becomes 'soc' (I can't justify this - if you can you should believe this answer much more).
'joining' says to put letters next to each other.
'fees' becomes 'rates' (I've seen this before).
'soc'+'rates'='SOCRATES'
Can you help me to learn more?
(Other definitions for socrates that I've seen before include "Coarsest (anag) - philosopher" , "sage from Greece" , "Legendary footballer" , "Coarsest sort of Greek philosopher" , "2 [PHILOSOPHER]" .)