Soft-nosed bullet (6)
I believe the answer is:
dumdum
'soft-nosed bullet' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for dumdum that I've seen before include "Fool" , "idiot" , "Soft-nosed bullet that expands when it hits target" , "Soft-nosed bullet type" , "Exploding type of bullet" .)