Dependent upon (7)
I believe the answer is:
reliant
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dependent upon</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 reliant that I've seen before include "Depending (on) - a three-wheeled car" , "Banking" , "needing help from others" , "Trusting" , "leaning" .)