Have boys in cradle changed much? (12)

I believe the answer is:

considerably

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'much?' is the definition.
(thesaurus)

'have boys in cradle changed' is the wordplay.
'boys in cradle' anagrams to 'CONSIDERABLY'.
But, I am not sure how this is indicated.

Can you help me to learn more?

(Another definition for considerably that I've seen is " in a significant way".)

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