Coming (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">coming</span>' is the definition.<br/ ><span class="explanation-format__explanation">(advent is the arrival or coming of something)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for advent that I've seen before include "observed by Christian church" , "Arrival - time before Christmas" , "Arrival (with calendar?)" , "appearance" , "Pre-Christmas season for Christians" .)
(Other definitions for future that I've seen before include "Time that is 4 down" , "Time still to come" , "Beyond the present" , "Hereafter" , "What is yet to pass" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">coming</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that coming can be written as arrival)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for arrival that I've seen before include "Achievement of destination" , "Act of coming" , "Appearance (at a destination)" , "Advent" , "Coming - comer" .)