Arguments in favour (4)
I believe the answer is:
pros
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arguments in favour</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 pros that I've seen before include "Sportsmen who are paid" , "Yes votes" , "Arguments in favour" , "Persons with knowledge and skill" , "Positive arguments" .)