Missing a deadline (4)
I believe the answer is:
late
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">missing a deadline</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for late that I've seen before include "Recently deceased" , "Delayed; dead" , "Still to come - already gone!" , "No longer alive; tardy" , "After the expected time" .)