Revoke, annul (6)
I believe the answer is:
cancel
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">revoke</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that revoke is a more specific form of the action cancel)</span><br/ ><br/ >'<span class="explanation-format__original">annul</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that annul is a more specific form of the action cancel)</span><br/ ><br/ ></span>
(Other definitions for cancel that I've seen before include "Annul or call off" , "Cross out or annul" , "Cross out or abolish" , "Go for an annulment" , "Discontinue" .)