Tests (5)
'tests' is the definition.
('exam' can be a synonym of 'test')
This is all the clue.
(Other definitions for exams that I've seen before include "Tests, in short" , "Set of exercises evaluating knowledge (abbr)" , "summer term commitment?" , "Tests for students" , "Important tests" .)
'tests' is the definition.
(I've seen this in another clue)
This is all the clue.