To nickname (3)
I believe the answer is:
dub
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">to nickname</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dub that I've seen before include "Add soundtrack to film in another language" , "Add a soundtrack in a different language" , "Confer knighthood" , "Name; put different language on to" , "type of music" .)