Mess, caught in Sofia, sloshed (6)
I believe the answer is:
fiasco
'mess' is the definition.
(thesaurus)
'caught in sofia sloshed' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'in' is an insertion indicator.
'sloshed' is an anagram indicator.
'sofia' with letters rearranged gives 'fiaso'.
'c' put within 'fiaso' is 'FIASCO'.
(Other definitions for fiasco that I've seen before include "Sudden total disaster" , "Ignominious result" , "Total debacle" , "Complete disaster" , "Embarrassing failure" .)