Inventor's protection (6)
I believe the answer is:
patent
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">inventor's protection</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for patent that I've seen before include "This leather has a glossy varnished surface" , "Open the right to an invention" , "Registration of an invention or trade name" , "licence inside" , "The right to an invention is clear" .)