Crossword Genius

A cold sea ruined what a doctor has on (8)

Ross

I believe the answer is:

caseload

'what a doctor has on' is the definition.
(caseload refers to a doctor's patients)

'a cold sea ruined' is the wordplay.
'ruined' indicates anagramming the letters.
'a'+'cold'+'sea'='acoldsea'
'acoldsea' with letters rearranged gives 'CASELOAD'.

(Other definitions for caseload that I've seen before include "Number of jobs to be handled in a given time, by a lawyer say" , "doctor's list" , "outstanding work" , "Matters to deal with" , "all doctor has to deal with?" .)

I've seen this clue in The Guardian.
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