Far on in the day (4)
I believe the answer is:
late
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">far on in the day</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 late that I've seen before include "Behind time; deceased" , "Passed on (but still not passed by!)" , "Yet to arrive?" , "Previous" , "Dead - tardy" .)