Crossword Genius

Peashooters finally confiscated from European student (7)

Ross

I believe the answer is:

etonian

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'student' is the definition.
Both the definition and answer are singular nouns.
Perhaps they are linked in a way I don't understand?

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for etonian that I've seen before include "Public schoolboy" , "English student" , "One educated at famous public school" , "Public school kid" , "Public school boy" .)

I've seen this clue in The Telegraph.
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