Crossword Genius

Expel vacant student holding up distance-learning provider (4)

Ross

I believe the answer is:

oust

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'expel' is the definition.
(synonyms)

I can't explain the remainder of the clue.

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(Other definitions for oust that I've seen before include "Overthrow" , "Put out, say of office" , "Send packing" , "Remove from a position of power" , "kick out" .)

I've seen this clue in The Telegraph.
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