Turned out sadly to be lacking education (9)
I believe the answer is:
untutored
'be lacking education' is the definition.
(not tutored or taught)
'turned out sadly' is the wordplay.
'sadly' indicates an anagram.
'turned'+'out'='turnedout'
'turnedout' is an anagram of 'UNTUTORED'.
'to' is the link.
(Other definitions for untutored that I've seen before include "Being ignorant" , "Not taught" , "Lacking formal teaching" , "lacking refinement" , "without formal education" .)