Crossword Genius

All in quarantine -- very onerous (8)

Ross

I believe the answer is:

everyone

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

'in quarantine very onerous' is the wordplay.
'in' indicates a hidden word.
'EVERYONE' is hidden within 'quarantine very onerous'.

(Other definitions for everyone that I've seen before include "Uncle Tom Cobleigh and all" , "All without exception" , "All and sundry" , "All the people" , "the masses" .)

I've seen this clue in The Telegraph.
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