Area in this landing (6)
I believe the answer is:
island
'area' is the definition.
(island is a kind of area)
'in this landing' is the wordplay.
'in' indicates a hidden word.
'ISLAND' can be found hidden inside 'this landing'.
(Other definitions for island that I've seen before include "Possibly key" , "Piece of land surrounded by water" , "No man is, said Donne" , "area adjacent to water" , "Lewis and Harris, possibly" .)