Waist band (4)
I believe the answer is:
belt
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">waist band</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 belt that I've seen before include "Article of clothing" , "Sign of rank in karate" , "A vigorous blow" , "Flog -- band" , "Zone; go quickly" .)