Scratch (out) (3)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">scratch out</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 eke that I've seen before include "Make a living laboriously - a palindrome" , "addition to Scots" , "To -- something out is to make it go further" , "Make last longer" , "Make a laborious living" .)