Fleeing (6,2,4,5)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fleeing</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 on the run that I've seen before include "In flight as from the police" , "wanted by the police" , "Fugitive - escaping from arrest" , "Trying to avoid capture" , "Like fugitives" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fleeing</span>' is the definition.<br/ ><span class="explanation-format__explanation">(bolting is a kind of fleeing)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Another definition for bolting that I've seen is " Running away without warning".)