Knock around (4)
I believe the answer is:
rove
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">knock around</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for rove that I've seen before include "Don't stay in one place" , "Ramble, roam, wander" , "Roam about aimlessly" , "Range" , "Wander or walk about" .)