Visible understanding? (7)
I believe the answer is:
insight
I believe this is a double definition.
'visible' is the first definition.
(something in sight is visible)
'understanding?' is the second definition.
(I know that insight is a type of understanding)
(Other definitions for insight that I've seen before include "Enlightenment" , "Deep understanding" , "Penetrative quality" , "Sudden understanding" , "Acute understanding" .)