Nazi emblem (8)
I believe the answer is:
swastika
'nazi emblem' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for swastika that I've seen before include "Mark of evil" , "Nazi symbol (somewhat resembling this crossword grid!)" , "Emblem of the Nazi Party" , "Ancient symbol adopted by Nazi Germany" , "Symbol of fascism" .)