Along with (3)
I believe the answer is:
and
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">along with</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for and that I've seen before include "it needs wholly positive input for positive result" , "Plus" , "Joining word" , "It's used to connect words, clauses or sentences" , "A very common conjunction" .)