Malay dagger (4)
I believe the answer is:
kris
'malay dagger' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for kris that I've seen before include "-- Kringle, Santa Claus" , "Malay dagger, wavy blade" , "Malaysian knife with a scalloped edge" , "Indonesian dagger; sounds like fold" , "Malayan slashing knife" .)