Lateness (9)
I believe the answer is:
tardiness
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">lateness</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for tardiness that I've seen before include "Delay" , "Being behind quality" , "Habit of being late" , "Becoming late" , "Lateness" .)