Plane totally emptied landing stage (5)
I believe the answer is:
jetty
'landing stage' is the definition.
(I've seen this before)
'plane totally emptied' is the wordplay.
'plane' becomes 'jet' (jet plane).
'emptied' means to remove the middle letters.
'totally' with its middle removed is 'ty'.
'jet'+'ty'='JETTY'
(Other definitions for jetty that I've seen before include "Dock" , "Pier - landing stage" , "Quay" , "Small landing stage" , "Wharf" .)