Heavy coat (5)
I believe the answer is:
armor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">heavy coat</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 armor that I've seen before include "protection in America" , "US military vehicles" .)