Swizzle stick (7)
I believe the answer is:
stirrer
'swizzle stick' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stirrer that I've seen before include "One making solution perhaps" , "Troublesome" , "One who spreads frightening or malicious rumours" , "Spoon - agitator" , "Scaremonger" .)