Form couples (4,2)
(Other definitions for pair up that I've seen before include "couple" , "match" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">form couples</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 pair off that I've seen before include "Form a couple" , "Form couples" , "match" .)