Europeans succeeded, interrupting public school types (9)

I believe the answer is:

estonians

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

'succeeded interrupting public school types' is the wordplay.
'succeeded' becomes 's' (genealogical abbreviation).
'interrupting' means one lot of letters goes inside another.
'public school types' becomes 'etonians' (alumni of Eton College).
's' placed inside 'etonians' is 'ESTONIANS'.

(Another definition for estonians that I've seen is " Europeans".)

I've seen this clue in The Times.

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