Provider of social introductions to a smart set possibly (11)

I believe the answer is:

toastmaster

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'provider of social introductions' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'to a smart set possibly' is the wordplay.
'possibly' indicates an anagram.
'smart'+'set'='smartset'
'smartset' anagrammed gives 'stmaster'.
'to'+'a'+'stmaster'='TOASTMASTER'

Can you help me to learn more?

(Other definitions for toastmaster that I've seen before include "Master of ceremonies at a banquet" , "MC at formal dinner" , "one announces at dinner" , "Official at formal dinner" , "Announcer at public dinner" .)

I've seen this clue in The Times.

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