Touched down (7)
'touched down' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for alit that I've seen before include "Came down to earth" , "got off" , "Landed" , "Climbed down from" , "Settled" .)
(Other definitions for arrived that I've seen before include "completed the journey" , "Reached a destination" , "Came" , "A driver (anag.)" .)