Curved oriental sabre (8)
I believe the answer is:
scimitar
'curved oriental sabre' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for scimitar that I've seen before include "one that is very sharp" , "Short curved oriental sword" , "Sword with curved blade used by the Turks and Persians" , "Curved oriental sabre" , "Steel" .)