Attitude of one academic god of Greece (8)
I believe the answer is:
poseidon
'god of greece' is the definition.
'Poseidon' can be an answer for 'god' (Poseidon is an example). I'm not sure about the 'of greece' bit.
'attitude of one academic' is the wordplay.
'attitude of' becomes 'pose' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'one' becomes 'i' (Roman numeral).
'academic' becomes 'don' (type of academic - especially at Oxbridge).
'pose'+'i'+'don'='POSEIDON'
Can you help me to learn more?
(Other definitions for poseidon that I've seen before include "underwater missile" , "I snooped to find Greek god of the sea" , "being able to create waves?" , "Olympian" , "Greek god of the sea and earthquakes" .)