Lost it (7)
I believe the answer is:
snapped
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lost it</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 snapped that I've seen before include "Bit" , "Broke; photographed" , "Took photograph" , "Spoke angrily" , "fell apart" .)