Shivering fit (4)
I believe the answer is:
ague
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shivering fit</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ague that I've seen before include "Hot and cold fever" , "Malarial fever or fit of shivering" , "Burning fever" , "met with cheek in Twelfth Night" , "Complaint" .)