Functions (4)
I believe the answer is:
uses
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">functions</span>' is the definition.<br/ ><span class="explanation-format__explanation">('use' can be a synonym of 'function')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for uses that I've seen before include "Utilises" , "Functions, applications" , "Sues (anag.)" , "Puts to a particular purpose" , "Takes (drugs)" .)