Mix up, as ingredients (4)
I believe the answer is:
stir
(Other definitions for stir that I've seen before include "Cause to move in slangy prison" , "Create revolutionary movement" , "Big house" , "Whisk or mix" , "Mix or agitate" .)
I believe the answer is:
stir
(Other definitions for stir that I've seen before include "Cause to move in slangy prison" , "Create revolutionary movement" , "Big house" , "Whisk or mix" , "Mix or agitate" .)