Over-the-top misrepresentation of exes' vices (9)
I believe the answer is:
excessive
'over' is the definition.
(thesaurus)
'of exes' vices' is the wordplay.
'of' is an anagram indicator (the answer comes from or 'of' the letters).
'exes'+'vices'='exesvices'
'exesvices' with letters rearranged gives 'EXCESSIVE'.
'the-top misrepresentation' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for excessive that I've seen before include "Beyond normal limits" , "Disproportionate" , "Over the top" , "More than is desirable" , "Immoderate" .)