Move on (6)
I believe the answer is:
elapse
'move on' is the definition.
(elapsing is a kind of moving on)
This is all the clue.
(Other definitions for elapse that I've seen before include "Glide by" , "Pass away - asleep (anag)" , "Slip away" , "(Of time) go by" , "Please (anag) -- pass away" .)