Little wonder! (6,7)

I believe the answer is:

infant prodigy

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'little wonder' is the definition.
The definition suggests a singular noun which matches the answer.

'little wonder' is the wordplay.
'little' becomes 'infant' (I am not sure about this - if you are sure you should believe this answer much more).
'wonder' becomes 'prodigy'.
'infant'+'prodigy'='INFANT PRODIGY'

Can you help me to learn more?

(Other definitions for infant prodigy that I've seen before include "junior mastermind" , "Mozart?" , "Wonder child" , "Young genius" .)

I've seen this clue in The Globe and Mail and The Irish News.

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