Blameworthy absentee is not quite true worker (6)
I believe the answer is:
truant
'blameworthy absentee' is the definition.
'truant' can be an answer for 'absentee' (truant is a kind of absentee). I'm not certain of the 'blameworthy' bit.
'not quite true worker' is the wordplay.
'not quite' means to remove the last letter.
'worker' becomes 'ant' (worker is a type of ant).
'true' with its last letter taken away is 'tru'.
'tru'+'ant'='TRUANT'
'is' acts as a link.
Can you help me to learn more?
(Other definitions for truant that I've seen before include "One playing hooky" , "Schoolboy who dodges school attendance" , "One stays away from school" , "School leaver" , "Absconder from school" .)