Give ear (6)
I believe the answer is:
listen
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">give ear</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for listen that I've seen before include "Take notice" , "Try to hear (something)" , "Give one's attention" , "Pay attention and hear" , "Attend (to a sound)" .)