...tired out -- I left poorly educated (7)
I believe the answer is:
tutored
'educated' is the definition.
('tutored' can be similar in meaning to 'educated')
'tired out i left poorly' is the wordplay.
'left' is a deletion indicator.
'poorly' is an anagram indicator.
'tired'+'out'='tiredout'
'tiredout' with 'i' taken out is 'tredout'.
'tredout' anagrammed gives 'TUTORED'.
(Other definitions for tutored that I've seen before include "Was coach" , "Gave private lessons to" , "Rude tot (anag.)" , "Disciplined" , "Trained" .)