Of the seven seas (7)

I believe the answer is:

oceanic

(Other definitions for oceanic that I've seen before include "Relating to, eg, Atlantic or Pacific" , "Relating to great seas" , "Relating to the high seas" , "Cocaine (anag)" , "description of rollers" .)

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.