Deduction (9)
I believe the answer is:
inference
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">deduction</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for inference that I've seen before include "Niece fern (anag.)" , "Conclusion reached on the basis of evidence and reasoning" , "Deduction from evidence" , "Deduction, conclusion" .)