Toast sound
I believe the answer is:
clink
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">toast sound</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 clink that I've seen before include "Prison - knock glasses together" , "Sound made when hitting glass" , "1 ac [COOLER]" , "Old London prison" , "Ringing sound - prison" .)