Removed from Red Sea, possibly (6)
I believe the answer is:
erased
'removed' is the definition.
(to erase is to remove or delete)
'red sea possibly' is the wordplay.
'possibly' is an anagram indicator.
'red'+'sea'='redsea'
'redsea' anagrammed gives 'ERASED'.
'from' acts as a link.
(Other definitions for erased that I've seen before include "torn off" , "Obliterated" , "removed recording" , "deleted material" , "'Wiped out, deleted (6)'" .)