Impute (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">impute</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that impute is a more specific form of ascribe)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ascribe that I've seen before include "Attribute to, say, an old writer?" , "'Impute, assign (7)'" , "Attribute (something to a cause)" , "Attribute or impute" , "Attribute to specified source or cause" .)