In the midst of the clatter, had a brilliant effect (5)

I believe the answer is:

eclat

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'a brilliant effect' is the definition.
(I've seen this before)

'in the midst of the clatter' is the wordplay.
'ECLAT' is hidden within the letters.
But, I am uncertain how the hidden word is indicated.

'had' acts as a link.

Can you help me to learn more?

(Other definitions for eclat that I've seen before include "Conspicuous success or distinction - in France" , "Brilliant display or effect" , "Brilliance" , "French social distinction or success" , "Universal approval" .)

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

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