Commotion; unrest (7)
I believe the answer is:
ferment
I believe this clue is a double definition.
'commotion' is the first definition.
(synonyms)
'unrest' is the second definition.
(I know that unrest can be written as ferment)
(Other definitions for ferment that I've seen before include "Boil" , "Make alcohol from sugar, using yeast" , "Stir up" , "Brew" , "Undergo chemical reaction such as when sugar turns to alcohol" .)