Batty character? No artist, anyway (4)

I believe the answer is:

nora

I'm a little stuck... Click here to teach me more about this clue!

'batty character? no artist anyway' is the definition.
I can't tell whether this definition defines the answer.

'batty character? no artist' is the wordplay.
'batty character?' becomes 'n' (I am not sure about the 'batty' bit.).
'no' becomes 'O' (O resembles 0).
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'n'+'o'+'ra'='NORA'

Can you help me to learn more?

(Other definitions for nora that I've seen before include "Woman" , "Girl's name" , "-- Batty (Last of the Summer Wine)" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app