And not (3)
I believe the answer is:
nor
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">and not</span>' is the definition.<br/ ><span class="explanation-format__explanation">('nor' means 'and also not')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for nor that I've seen before include "Neither one ... the other" , "It's also not" , "Link word" , "In addition, not" , "Negative word" .)