Shake with cold (6)
I believe the answer is:
shiver
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shake with cold</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for shiver that I've seen before include "Shake with cold or fear" , "Tremble slightly as from cold" , "Shudder" , "Tremble, shatter" , "Momentary tremble" .)