Having flipped, turtle did as cricket did? (11)

I believe the answer is:

stridulated

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'did?' is the definition.
Although both the answer and definition are past participle verbs, I don't see how they can define each other.

'having flipped turtle did as cricket' is the wordplay.
'turtle did as' can be anagrammed to 'STRIDULATED'.
But, I'm not sure how the anagram is indicated.

Can you help me to learn more?

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