Spur, incite (4)
I believe the answer is:
goad
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">spur</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that spur is a kind of goad)</span><br/ ><br/ >'<span class="explanation-format__original">incite</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that goad is a kind of incite)</span><br/ ><br/ ></span>
(Other definitions for goad that I've seen before include "'Prod, urge (4)'" , "Spur, prod" , "Incite to action" , "Cattle prod" , "Cattle-driving spike" .)