Sweet-looking child Bruce spoiled outside hospital (6)
I believe the answer is:
cherub
'sweet-looking child' is the definition.
(angelic child)
'bruce spoiled outside hospital' is the wordplay.
'spoiled' is an anagram indicator.
'outside' is an insertion indicator.
'hospital' becomes 'h' (abbreviation for hospital on maps).
'bruce' anagrammed gives 'cerub'.
'cerub' enclosing 'h' is 'CHERUB'.
(Other definitions for cherub that I've seen before include "A heavenly winged child" , "Little angel" , "Sweet innocent baby" , "Angelic child" , "Member of heavenly group" .)