Disturbed the heads of nine departments in huge organisation (8)
I believe the answer is:
unhinged
'disturbed' is the definition.
(I know that disturbed can be written as unhinged)
'heads of nine departments in huge organisation' is the wordplay.
'heads of' says to take the initial letters.
'organisation' indicates an anagram.
The first letters of 'nine departments' is 'nd'.
'nd'+'in'+'huge'='ndinhuge'
'ndinhuge' with letters rearranged gives 'UNHINGED'.
'the' acts as a link.
(Other definitions for unhinged that I've seen before include "like sliding doors?" , "Door may be" , "characteristic of door after dislodgement?" , "doors have been taken off" , "Bats" .)