Defrosts (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">defrosts</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 thaws that I've seen before include "As role of Morse was to become" , "(Of snow) melts" , "friendlier times?" , "Starts to unfreeze" .)