As one might be, having confused note with four others? (4,4)
I believe the answer is:
tone deaf
'as one' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?
'having confused note with four others?' is the wordplay.
I cannot really understand how this works, but
an anagram of 'note' is 'tone' which is within the answer.
The remaining letters 'deaf' 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).
'might be' acts as a link.
Can you help me to learn more?
(Other definitions for tone deaf that I've seen before include "insensitive to pitch" , "no ear?" , "not appreciative of notes?" .)