Incomplete check leading to zero sound (5)

I believe the answer is:

audio

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'sound' is the definition.
(audio means sound)

'incomplete check leading to zero' is the wordplay.
'incomplete check leading' becomes 'audi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to zero' becomes 'O' (O resembles 0).
'audi'+'o'='AUDIO'

Can you help me to learn more?

(Other definitions for audio that I've seen before include "Relating to sound or hearing" , "in the sound department?" , "type of reproduction" , "- Tape; - typist" , "Prefix relating to sound" .)

I've seen this clue in The Telegraph.

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