Maroon beach (6)
I believe the answer is:
strand
This clue is a double definition.
'maroon' is the first definition.
(as in stranding or marooning someone somewhere)
'beach' is the second definition.
(I've seen this before)
(Other definitions for strand that I've seen before include "Run aground, beach" , "Thread; leave in lurch" , "Ringlet or stretch of beach" , "Single hair; drive ashore" , "string" .)