Utterly confused but chic to a fault (7)
I believe the answer is:
chaotic
'utterly confused' is the definition.
(I've seen this in another clue)
'chic to a fault' is the wordplay.
'fault' indicates anagramming the letters (a faulty spelling).
'chic'+'to'+'a'='chictoa'
'chictoa' with letters rearranged gives 'CHAOTIC'.
'but' acts as a link.
(Other definitions for chaotic that I've seen before include "in random order" , "Disorderly, shambolic" , "totally out of order?" , "In complete confusion" , "Totally disorganised" .)