Short dagger (8)
I believe the answer is:
stiletto
'short dagger' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stiletto that I've seen before include "Narrow-bladed dagger" , "Tapering dagger" , "Dagger; tapered heel" , "Type of shoe" , "Type of heel" .)