Shakespearean sidecars crashed (8)

I believe the answer is:

cressida

I'm a little stuck... Click here to teach me more about this clue!

'shakespearean sidecars crashed' is the definition.
I can't tell whether this defines the answer.

'sidecars crashed' is the wordplay.
'crashed' indicates an anagram.
'sidecars' anagrammed gives 'CRESSIDA'.

Can you help me to learn more?

(Other definitions for cressida that I've seen before include "Lover of Troilus (Shakespeare)" , "Lover of 5 Down" , "Unfaithful daughter of priest" , "one from Shakespeare" , "title role" .)

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

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