Unknown (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unknown</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 anon that I've seen before include "Without known author" , "Of unknown name (abbr)" , "devoid of credit" , "Not identified by name" , "In due course" .)
(Other definitions for indeterminate that I've seen before include "uncertain result?" , "Inconclusive" , "Vague - unsettled" , "Not exactly defined" , "Not precisely fixed" .)