Furthermore comes to nothing (3)

I believe the answer is:

too

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

'furthermore' is the definition.
(I've seen this before)

'to nothing' is the wordplay.
'nothing' becomes 'o' (looks like zero - 0).
'to'+'o'='TOO'

'comes' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for too that I've seen before include "As well; in addition" , "As well, also" , "Additionally" , "Furthermore" , "Likewise" .)

I've seen this clue in the Evening Standard.

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