Fully functional (2,3,7)
I believe the answer is:
up and running
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fully functional</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 up and running that I've seen before include "Already active" , "like the early morning athlete" , "working properly" , "like a jogger first thing?" , "Fully functional" .)