Invigorating (7)
(Other definitions for stirring that I've seen before include "Exciting" , "Inspiring" , "Rousing; mixing" , "Rousing (using a spoon?)" , "Heady" .)
'invigorating' is the definition.
(similar in meaning)
This is the entire clue.
(Other definitions for bracing that I've seen before include "Imparting vitality" , "brisk" , "Refreshing" , "form of support" , "Fresh and invigorating" .)