Active; forceful (7)
I believe the answer is:
dynamic
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">active</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that active can be written as dynamic)</span><br/ ><br/ >'<span class="explanation-format__original">forceful</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for dynamic that I've seen before include "Forceful" , "I'm Candy (anag) - full of beans" , "Having power" , "Vigorous and effective" , "Powerful and vigorous" .)