Fugitive’s fantastic leap across border — Steve, actor featuring at the end (9)
I believe the answer is:
ephemeral
'fugitive's' is the definition.
(I've seen this before)
'fantastic leap across border steve actor featuring at the end' is the wordplay.
I cannot really understand how this works, but
'border' could be 'hem' (I've seen this before) and 'hem' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for ephemeral that I've seen before include "not going to last long" , "staying for a little while" , "Fleeting, lasting only a short time" , "A mere help (anag) - short-lived" , "life's too short" .)