Disliked person (2-3-2)
I believe the answer is:
so-and-so
'disliked person' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for so-and-so that I've seen before include "Person unspecified or abjured" , "Disfavoured person" , "Right little rascal!" , "Unnamed person" , "Difficult person - nobody in particular" .)