Dignified way to get an appointment (6)

I believe the answer is:

sedate

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

'way to get an appointment' is the wordplay.
'way to get' becomes 'se' (I can't justify this - if you can you should give a lot more credence to this answer).
'an appointment' becomes 'date' (synonyms).
'se'+'date'='SEDATE'

Can you help me to learn more?

(Other definitions for sedate that I've seen before include "Dignified and sombre" , "Administer a calming drug" , "Calm and dignified in manner" , "Quiet and rather dull" , "boring" .)

I've seen this clue in the Evening Standard.

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