First name of egg has to do nothing in NT town (6,3)

'first name of egg has' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'do nothing in nt town' is the wordplay.
I cannot really understand how this works, but
'do' is within the answer.
'nothing' could be 'o' (O resembles 0) and 'o' is found in the answer.
'town' could be 't' (abbreviation for town) and 't' is found in the answer.
The remaining letters 'humpy' 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).

'to' is the link.

Can you help me to learn more?