Abandoned airports left one by one? (4-8)
I believe the answer is:
self-portrait
'one?' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'abandoned airports left one by' is the wordplay.
'abandoned' indicates an anagram.
'one by' says to put letters next to each other.
'airports'+'left'='airportsleft'
'airportsleft' with letters rearranged gives 'SELF-PORTRAIT'.
Can you help me to learn more?
(Other definitions for self-portrait that I've seen before include "Painting of the artist by the artist" , "Artist's own picture" , "Picture of its artist" .)