Educated class composed of international talent I single out (14)

I believe the answer is:

intelligentsia

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'educated class composed' is the definition.
I can't judge whether this defines the answer.

'international talent i single out' is the wordplay.
'international' becomes 'i' (abbreviation eg in IMF).
'out' indicates an anagram (out can mean wrong or inaccurate).
'talent'+'i'+'single'='talentisingle'
'talentisingle' is an anagram of 'ntelligentsia'.
'i'+'ntelligentsia'='INTELLIGENTSIA'

'of' is the link.

Can you help me to learn more?

(Other definitions for intelligentsia that I've seen before include "Learned people" , "Bright bunch" , "Smart people" , "Highly educated people" , "brains!" .)

I've seen this clue in The Telegraph.

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