noisy commotion (6)
(Other definitions for hoo-ha that I've seen before include "In slang, it's a commotion" , "Noisy fuss" , "Kerfuffle" , "Disturbance" , "Noisy confusion" .)
'noisy commotion' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stir that I've seen before include "Sensation" , "fuss" , "Kerfuffle" , "Uproar" , "bird" .)
(Other definitions for hubbub that I've seen before include "riot" , "General noise" , "'Brouhaha, uproar (6)'" , "Confused sound of many voices" , "Uproar, tumult" .)