Skip a big wedding
I believe the answer is:
elope
'skip a big wedding' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for elope that I've seen before include "Run off with Mr/Ms Right" , "go off to the match?" , "Abscond for amorous purposes" , "escape" , "do a moonlight flit" .)