Qualification; extent (6)
I believe the answer is:
degree
This clue is a double definition.
'qualification' is the first definition.
(university qualification)
'extent' is the second definition.
(I've seen this before)
(Other definitions for degree that I've seen before include "Angular measure" , "The measure of a university award?" , "See 13" , "displayed by small elevated circle" , "Measure for angles and temperature" .)