Kind person who’s something of an oddity (9)
I believe the answer is:
character
'an oddity' is the definition.
(thesaurus)
'kind person who's something' is the wordplay.
I cannot quite see how this works, but
'something' could be 'er' (I've seen this in other clues) and 'er' is found in the answer.
The remaining letters 'charact' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'of' is the link.
Can you help me to learn more?
(Other definitions for character that I've seen before include "Stamp < letter" , "case" , "Role - nature" , "card" , "Part" .)