Frosted (4)
I believe the answer is:
iced
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">frosted</span>' is the definition.<br/ ><span class="explanation-format__explanation">('ice' can be a synonym of 'frost')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for iced that I've seen before include "Frosted over" , "reduced number of degrees" , "Chilled; decorated" , "Chilled - killed" , "Decorated; killed" .)