"Dover Beach" poet (6)
I believe the answer is:
arnold
'dover beach poet' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for arnold that I've seen before include "Victorian poet" , "Another poet" , "Essayist" , "Sir Malcolm -, English composer" , "Sir Malcolm -, composer (Bridge over the River Kwai)" .)