Advertisement (10)
I believe the answer is:
commercial
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">advertisement</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that commercial is a type of advertisement)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for commercial that I've seen before include "having profit as the main aim" , "TV ad" , "Marketable" , "Greek island" , "Television advert" .)