Legalese, essentially, is considered to quite blustery? (4)

I believe the answer is:

gale

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'considered to quite blustery?' is the definition.
I can't tell whether this defines the answer.

'legalese essentially' is the wordplay.
'essentially' indicates a hidden word (essence can mean the inside of something).
'GALE' is hidden within 'legalese'.

'is' is the link.

Can you help me to learn more?

(Other definitions for gale that I've seen before include "Force 8 wind" , "A storm of wind and rain" , "A wild storm" , "Fierce wind" , "Strong wind" .)

I've seen this clue in The Irish Times.

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