Asserted (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">asserted</span>' is the definition.<br/ ><span class="explanation-format__explanation">('aver' can be a synonym of 'assert')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for averred that I've seen before include "Stated to be the case" , "confidently stated" , "Maintained" , "Claimed" , "Stated, asserted" .)
(Other definitions for imposed that I've seen before include "set as a task" , "Forced to be accepted" , "Thrust oneself upon" , "enforced" .)