Proctor's handout (4)
I believe the answer is:
exam
'proctor's handout' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for exam that I've seen before include "In brief, a test as in school" , "Test (abbr)" , "One test" , "'Test, in short (4)'" , "Educational test" .)