Wild confusion (7)
'wild confusion' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for pandemonium that I've seen before include "Chaos and confusion" , "mayhem" , "Tumultuous uproar" , "State of chaos" , "Uproar, wild and noisy confusion" .)
(Other definitions for turmoil that I've seen before include "Tumult, upheaval" , "Hubbub" , "racket" , "Brouhaha" , "Disquiet" .)