Infant school's close to confusing voices (5)

I believe the answer is:

babel

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'infant school's close to confusing voices' is the definition.
I can't tell whether this definition defines the answer.

'infant school's close to' is the wordplay.
'infant' becomes 'babe' (synonyms).
'close to' indicates one should take the final letters (the close/ending of).
The final letter of 'school' is 'l'.
'babe'+'l'='BABEL'

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(Other definitions for babel that I've seen before include "Negotiate keenly" , "Biblical city with a tower" , "racket" , "Confusion of noise" , "Ancient city" .)

I've seen this clue in the Sydney Morning Herald.

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