Rum drunk during work causes uproar (7)
I believe the answer is:
turmoil
'uproar' is the definition.
(I've seen this before)
'rum drunk during work' is the wordplay.
'drunk' indicates anagramming the letters.
'during' is an insertion indicator.
'work' becomes 'toil' (toiling is a kind of working).
'rum' is an anagram of 'urm'.
'urm' placed inside 'toil' is 'TURMOIL'.
'causes' acts as a link.
(Other definitions for turmoil that I've seen before include "Tumult, upheaval" , "Wild disorder" , "Violent commotion" , "Unrest - upheaval" , "Sturm und Drang" .)