Get the better of teacher (6)
I believe the answer is:
master
This could be a double definition.
'get' is the first definition.
(thesaurus)
'better of teacher' is the second definition.
'master' can be an answer for 'teacher' (I've seen this before). I'm not sure about the 'better of' bit.
'the' is the link.
Can you help me to learn more?
(Other definitions for master that I've seen before include "Overcome; original copy" , "Very good chess player" , "Craftsperson of great skill" , "Maestro; teacher" , "Skilled practitioner" .)