Postgraduate cut toast in a different way to make it better (7)
I believe the answer is:
upgrade
'better' is the definition.
(thesaurus)
'postgraduate cut toast in a different way' is the wordplay.
'cut' is a deletion indicator.
'in a different way' indicates an anagram (letters ordered a new way).
'postgraduate' with 'toast' removed is 'pgrduae'.
'pgrduae' is an anagram of 'UPGRADE'.
'to make it' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for upgrade that I've seen before include "Raise to higher class (air travel)" , "Change to later model" , "'Improve, travel status perhaps (7)'" , "promotion" , "Raise to higher standard" .)