Conceal oneself (3,3)
(Other definitions for lie low that I've seen before include "Remain unobtrusive - in prone posture?" , "Stay out of sight, be inconspicuous" , "Keep concealed or quiet" , "Be inconspicuous - in horizontal position?" , "Conceal oneself or one's intentions" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">conceal oneself</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 hide that I've seen before include "Pelt; conceal" , "Animal retreat" , "Take cover - skin" , "Keep secret, skin" , "Tanned skin of an animal" .)