About, before a year (5)
I believe the answer is:
circa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">about before a year</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for circa that I've seen before include "Roughly" , "Approximately, around" , "(Especially of a date) approximately" , "Approximately (of a year)" , "Preposition meaning about, usually preceding a date" .)