Cause for cramming (4)
I believe the answer is:
exam
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cause for cramming</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for exam that I've seen before include "Written test" , "In brief, a test as in school" , "Set of questions evaluating skill or knowledge, in short" , "paper" , "Test (abbrev.)" .)