Being pressurised, ate dinner that was secretly drugged (7)

I believe the answer is:

sedated

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

'drugged' is the definition.
(I've seen this before)

'being pressurised ate dinner that was secretly' is the wordplay.
'SEDATED' is hidden within the letters.
But, I'm uncertain how this is indicated.

Can you help me to learn more?

(Other definitions for sedated that I've seen before include "Calmed with drugs" , "kept calm" , "Given a tranquilliser" , "Drugged" , "Under the influence of drugs" .)

I've seen this clue in The Irish Times.

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