Author that's narrated The Beach ? (4)
I believe the answer is:
shaw
'author' is the definition.
(Shaw is an example)
'narrated the beach ?' is the wordplay.
'narrated' shows a homophone (sound like).
'the beach ?' becomes 'shore' (I've seen this before).
'shore' sounds like 'SHAW'.
'that's' is the link.
(Other definitions for shaw that I've seen before include "Irish author" , "Thicket; playwright" , "Irish playwright, d. 1950" , "Major Barbara playwright" , "Pygmalion playwright" .)