In contact with (7)
I believe the answer is:
against
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in contact with</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 against that I've seen before include "Anti, touching" , "In opposition to" , "close by" , "Opposed" , "Opposing" .)