Confusion with men returning in horrible big limo (9)
I believe the answer is:
imbroglio
'confusion' is the definition.
(I've seen this before)
'with men returning in horrible big limo' is the wordplay.
'with' means one lot of letters goes inside another.
'men' becomes 'or' (I've seen this in other clues).
'returning in' says the letters should be written in reverse.
'horrible' is an anagram indicator.
'or' in reverse letter order is 'ro'.
'big'+'limo'='biglimo'
'biglimo' anagrammed gives 'imbglio'.
'ro' going into 'imbglio' is 'IMBROGLIO'.
(Other definitions for imbroglio that I've seen before include "Intricate and confusing heap or situation" , "massive jam" , "Confused and tangled situation" , "Confusion" , "Confused mess" .)