The horizon may be this, according to my understanding? (2,3,2,1,3,3)
I believe the answer is:
as far as i can see
'according to my understanding?' is the definition.
(phrase meaning 'in my opinion' or 'it seems to me')
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for as far as i can see that I've seen before include "to my knowledge" , "The faintest star is" , "To the best of my understanding" .)