Regard as likely to happen (6)
I believe the answer is:
expect
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">regard as likely to happen</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 expect that I've seen before include "Be pregnant" , "Await or anticipate" , "Consider likely to happen" , "demand and > have prospects" , "Confidently hope" .)