Declare invalid (5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">declare invalid</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for annul that I've seen before include "Cancel officially" , "Invalidate" , "Countermand" , "Cancel, make void" , "Nullify" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">declare invalid</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nullify that I've seen before include "In fully (anag.)" , "Make void" , "Make invalid" , "Invalidate" , "Declare invalid" .)