Easily controlled (9)
I believe the answer is:
tractable
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">easily controlled</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 tractable that I've seen before include "Docile" , "easily handled" , "Easy to manage or deal with" , "Easily controlled" , "easily managed" .)