Off the track (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">off the track</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 astray that I've seen before include "Wandering off the path" , "Go . . . . . . - get lost" , "Wandering lost" , "A satyr (anag.)" , "Off course - wrong - misled" .)