In disorder; out of control (7)
I believe the answer is:
haywire
This clue is a double definition.
'in disorder' is the first definition.
(I've seen this in another clue)
'out of control' is the second definition.
(I've seen this before)
(Other definitions for haywire that I've seen before include "nuts" , "Mad" , "Malfunctioning badly" , "Chaotic" , "Out of order -- erratic" .)