The most common and most likely answer to this crossword clue is the 5 letter word HITHE
H
I
T
H
E
More clues leading to the result HITHE
Buddy explains!

The straight part
We know that "Landing place" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case landing place = hithe.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
Crossword Answer definitions
HITHE noun- A landing-place on a river; a harbour or small port.