Type of missile (6)
I believe the answer is:
exocet
'type of missile' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for exocet that I've seen before include "French missile used by Argentina in the Falklands War" , "Short-range guided missile" , "Tactical missile" , "French-built anti-ship missile" , "Type of guided missile" .)