Previous day (3)
I believe the answer is:
eve
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">previous day</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 eve that I've seen before include "First lady from the night before" , "Girl" , "Day before (an event)" , "One from Genesis" , "Period immediately before" .)