Inner self revealed in revolutionary examination (5)
I believe the answer is:
anima
'inner self' is the definition.
(I've seen this in another clue)
'in revolutionary examination' is the wordplay.
'revolutionary' says the letters should be written in reverse (letters revolve around).
'in' indicates the answer is hidden within the clue.
'amina' is hidden within 'examination'.
'amina' written backwards gives 'ANIMA'.
'revealed' is the link.
(Other definitions for anima that I've seen before include "Part of the male personality" , "Feminine part of the personality" , "Inner personality (psychol.)" , "Witty remark" , "Part of psyche directed inwards" .)