Do well to become advanced (3,2)
I believe the answer is:
get on
'do well' is the definition.
(thesaurus)
'become advanced' is the wordplay.
I cannot quite understand how this works, but
'become' could be 'get' (synonyms) and 'get' is found in the answer.
The remaining letters 'on' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'to' is the link.
Can you help me to learn more?
(Other definitions for get on that I've seen before include "Make progress or mount up" , "Board (a bus)" , "Age; prosper" , "Make progress or climb aboard" , "Agree - embark - make progress" .)