Head of healthcare rebuilt a spoilt infirmary (8)
I believe the answer is:
hospital
'infirmary' is the definition.
(synonyms)
'head of healthcare rebuilt a spoilt' is the wordplay.
'head of' says to take the initial letters.
'rebuilt' is an anagram indicator.
The first letter of 'healthcare' is 'h'.
'a'+'spoilt'='aspoilt'
'aspoilt' with letters rearranged gives 'ospital'.
'h'+'ospital'='HOSPITAL'
(Other definitions for hospital that I've seen before include "Healing institution" , "Institute for care and treatment of patients" , "Infirmary" , "asylum?" , "medical facility!" .)