Evident, ship in sea (6)
I believe the answer is:
marked
'evident' is the definition.
(thesaurus)
'ship in sea' is the wordplay.
'ship' becomes 'ark' (as in Noah's ark).
'in' indicates putting letters inside.
'sea' becomes 'med' (abbreviation of Mediterranean).
'ark' going into 'med' is 'MARKED'.
(Other definitions for marked that I've seen before include "Took good notice of - . . . . . . my words?" , "Read, corrected and awarded a grade" , "showing flag maybe" , "Easily noticeable" , "Singled out; clearly noticeable" .)