Furrow or channel (6)
I believe the answer is:
groove
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">furrow</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that furrow can be written as groove)</span><br/ ><br/ >'<span class="explanation-format__original">channel</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that channel can be written as groove)</span><br/ ><br/ ></span>
(Other definitions for groove that I've seen before include "Long shallow depression or routine" , "Long narrow channel in surface of hard material" , "'Channel, furrow (6)'" , "Spiral track followed by a gramophone needle" , "Cutting" .)