Dinner bell? (4)
I believe the answer is:
gong
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dinner bell?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for gong that I've seen before include "Medal (sl.)" , "Wordsworth's Boy; Dostoevsky's hero" , "Decoration" , "Round plate that resounds when struck" , "Help, benefit" .)