Doctor has spoilt his places of work (9)

I believe the answer is:

hospitals

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'his places of work' is the definition.
The definition suggests a singular noun but the answer is a plural noun.

'doctor has spoilt' is the wordplay.
'doctor' is an anagram indicator.
'has'+'spoilt'='hasspoilt'
'hasspoilt' with letters rearranged gives 'HOSPITALS'.

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(Other definitions for hospitals that I've seen before include "Lost aphis found in health centres" , "Buildings with wards" , "Medical institutions" , "Infirmaries" .)

I've seen this clue in The Telegraph.

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