Avoid a big wedding (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">avoid a big wedding</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 elope that I've seen before include "Run away together" , "Run off with Mr/Ms Right" , "Do a runner" , "run off with another?" , "(Lovers) run away" .)