Patronising houri, health not suffering (6-4-4)
I believe the answer is:
holier-than-thou
'patronising' is the definition.
'houri health not suffering' is the wordplay.
'suffering' indicates an anagram.
'houri'+'health'+'not'='hourihealthnot'
'hourihealthnot' anagrammed gives 'HOLIER-THAN-THOU'.
(Other definitions for holier-than-thou that I've seen before include "Self-righteous" , "Sanctimonious" .)