Express disapproval of idler even before Ms Blanchett (9)

I believe the answer is:

deprecate

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'express disapproval of' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for deprecate that I've seen before include "Disapprove of" , "Deplore or belittle" , "Express strong disapproval of" , "Deplore; disparage" , "Feel and express disapproval of" .)

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

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