Taking a rum concoction into work results in chaos (7)
I believe the answer is:
turmoil
'chaos' is the definition.
(I've seen this before)
'taking a rum concoction into' is the wordplay.
'taking' is an insertion indicator.
'concoction' indicates anagramming the letters.
'into' becomes 'toil' (I can't justify this - if you can you should believe this answer much more).
'rum' with letters rearranged gives 'urm'.
'urm' placed within 'toil' is 'TURMOIL'.
'work results in' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for turmoil that I've seen before include "Unrest - upheaval" , "Agitation, confusion" , "Disquiet" , "Agitation, din, bustle" , "State of great commotion or disturbance" .)