Victorian, for one (3)
I believe the answer is:
era
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">victorian for one</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 era that I've seen before include "Long period of time" , "Distinctive period of time" , "Specific time" , "Long period of history" , "Characteristic period" .)