A right-hand man won't rub me the wrong way (6,3)
I believe the answer is:
number two
'a right-hand man' is the definition.
Both the answer and definition are singular nouns.
Maybe they are linked in a way I don't understand?
'won't rub me the wrong way' is the wordplay.
'the wrong way' indicates anagramming the letters (I've seen this in other clues).
'wont'+'rub'+'me'='wontrubme'
'wontrubme' with letters rearranged gives 'NUMBER TWO'.
Can you help me to learn more?
(Other definitions for number two that I've seen before include "Dump" , "Second in command" , "Second-in-command" , "vice" , "deputy" .)