Quality raised in top hospital monument (8)
I believe the answer is:
Here is my best explanation:
'monument' is the definition.
(cenotaph is a kind of monument)
'quality raised in top hospital' is the wordplay.
'quality' becomes 'tone' (synonyms).
'raised' says the letters should be written backwards.
'in' means one lot of letters goes inside another.
'top' becomes 'cap' (synonyms).
'hospital' becomes 'h'.
'tone' backwards is 'enot'.
'enot' put into 'cap' is 'cenotap'.