Butter-making device
I believe the answer is:
churn
'butter-making device' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for churn that I've seen before include "Large metal milk container" , "Stir violently - to make butter?" , "Shake" , "Butter-making machine" , "Kind of barrel in which butter in made" .)