Batsmen going in first (7)
I believe the answer is:
openers
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">batsmen going in first</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 openers that I've seen before include "Some cricketers" , "Batsmen going in first" , "overtures?" , "Keys" , "Two bats" .)