Provision of data (5)
I believe the answer is:
input
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">provision of data</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for input that I've seen before include "Person's contribution (to activity); electrical signal" , "Signal fed to equipment" , "Simple, without artifice" , "Energy" , "store" .)