Tricky matter: ten for hospital care (9)
I believe the answer is:
treatment
'hospital care' is the definition.
(I've seen this before)
'tricky matter ten' is the wordplay.
'tricky' is an anagram indicator.
'matter'+'ten'='matterten'
'matterten' is an anagram of 'TREATMENT'.
'for' acts as a link.
(Other definitions for treatment that I've seen before include "Medical attention" , "See 41 Down" , "Cure, remedy" , "Hospital care" , "NHS care?" .)