Qualification, to some extent (6)
I believe the answer is:
degree
I believe this is a double definition.
'qualification' is the first definition.
(university qualification)
'some extent' is the second definition.
(I've seen this before)
'to' is the link.
(Other definitions for degree that I've seen before include "Award conferred on a 1 across" , "It's given to college graduates" , "Further education award - extent" , "Position on a scale" , "Angular unit; grade" .)