Sound familiar (4,1,4)
I believe the answer is:
ring a bell
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sound familiar</span>' is the definition.<br/ ><span class="explanation-format__explanation">(something which seems familiar rings a bell)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for ring a bell that I've seen before include "Call for servant" , "Make a chiming sound" , "may awaken memories" , "faintly resonate" , "Formally declare (appointment)" .)