Big wasp (6)
I believe the answer is:
hornet
'big wasp' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hornet that I've seen before include "Large wasp with vicious sting" , "Throne (anag.)" , "Large social wasp with fierce sting" , "Run through" , "Stinging insect" .)