Wagtail landed (4)
I believe the answer is:
alit
'landed' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for alit that I've seen before include "got off" , "Settled" , "Came down to earth" , "Climbed down from" , "Landed" .)