Evil raised for example in symbol (5)
I believe the answer is:
badge
'symbol' is the definition.
(I know that badge is a type of allegory)
'evil raised for example' is the wordplay.
'evil' becomes 'bad' (similar in meaning).
'raised' says the letters should be written backwards (going up in a down clue).
'for example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'eg' backwards is 'ge'.
'bad'+'ge'='BADGE'
'in' acts as a link.
(Other definitions for badge that I've seen before include "Thing worn to show, say, membership of organisation" , "Identifying emblem" , "Insignia (of office?)" , "Worn emblem" , "Symbol worn, to indicate membership perhaps" .)