Time to mix rum with fuel in confusion (7)
I believe the answer is:
turmoil
'confusion' is the definition.
(I've seen this before)
'time to mix rum with fuel' is the wordplay.
'time' becomes 't' (abbreviation).
'to mix' indicates an anagram.
'with' means one lot of letters go next to another.
'fuel' becomes 'oil' (oil is a type of fuel).
'rum' anagrammed gives 'urm'.
't'+'urm'+'oil'='TURMOIL'
'in' acts as a link.
(Other definitions for turmoil that I've seen before include "Sturm und Drang" , "Pandemonium" , "Chaos" , "racket" , "Violent commotion" .)