Move swiftly (6)
I believe the answer is:
career
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">move swiftly</span>' is the definition.<br/ ><span class="explanation-format__explanation">(career can mean to race around)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for career that I've seen before include "Rush madly" , "Move headlong at high speed" , "Lifetime's work" , "One's work life" , "Lifetime's occupation" .)