Confusion of slave hiding cocktail of rum (7)
I believe the answer is:
turmoil
'confusion' is the definition.
(I've seen this before)
'slave hiding cocktail of rum' is the wordplay.
'slave' becomes 'toil' (I've seen this in another clue).
'hiding' is an insertion indicator.
'cocktail of' indicates anagramming the letters (a mixture of the letters).
'rum' is an anagram of 'urm'.
'toil' going around 'urm' is 'TURMOIL'.
'of' is the link.
(Other definitions for turmoil that I've seen before include "Disquiet" , "Wild disorder" , "racket" , "Violent confusion" , "Agitation, din, bustle" .)