Graduate in not finishing Observer crossword shock! (5)
I believe the answer is:
amaze
'shock' is the definition.
(I've seen this in another clue)
'graduate in not finishing observer crossword' is the wordplay.
I cannot quite understand how this works, but
'graduate' could be 'ma' (abbreviation for Master of Arts) and 'ma' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for amaze that I've seen before include "Surprise greatly, astonish" , "Stupefy" , "Floor" , "Affect with wonder" , "Greatly surprise, astound" .)