Post conveyed by plane (7)
I believe the answer is:
airmail
(Other definitions for airmail that I've seen before include "Postal system f" , "Letters that are flown in" , "Post going by plane" , "overseas post?" , "Flying service" .)
I believe the answer is:
airmail
(Other definitions for airmail that I've seen before include "Postal system f" , "Letters that are flown in" , "Post going by plane" , "overseas post?" , "Flying service" .)