Where to obtain a degree in common talk (7)
I believe the answer is:
varsity
'where to obtain a degree in common talk' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
This is all the clue.
Can you help me to learn more?
(Other definitions for varsity that I've seen before include "Colloquial place of higher education" , "Educational institution" , "Related to Oxford and Cambridge University sports" , "Cambridge, perhaps?" , "Oxford, say?" .)