Lock part
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lock part</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 hasp that I've seen before include "Door latch" , "Hinged fastening" , "Hinged metal fastener" , "This part of fastening device" , "part of a lock" .)