By way of; finished (7)
I believe the answer is:
through
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">by way of</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >'<span class="explanation-format__original">finished</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for through that I've seen before include "Non-stop - finished" , "From one end or side to the other" , "By means of; having finished a relationship" , "Per" , "made it to the next stage" .)