In good physical shape
I believe the answer is:
fit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">in good physical shape</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for fit that I've seen before include "Healthy, exercised" , "Adequate" , "'Sudden attack, of coughing say (3)'" , "Healthy; conform to" , "Suitable; sudden attack" .)