See energy returning to feed Australian god (6)
I believe the answer is:
aeolus
'god' is the definition.
(Aeolus is an example)
'see energy returning to feed australian' is the wordplay.
'see' becomes 'lo' (archaic word meaning 'look!').
'energy' becomes 'e' (physics symbol as in E=mc2).
'returning' shows that the letters should be reversed in order.
'to feed' indicates putting letters inside.
'australian' becomes 'aus' (common abbreviation).
'lo'+'e'='loe'
'loe' back-to-front is 'eol'.
'eol' placed into 'aus' is 'AEOLUS'.
(Other definitions for aeolus that I've seen before include "Greek god of winds" , "God of the winds in ancient mythology" .)