Crossword Genius

Jack shows Silas around island (7)

Ross

I believe the answer is:

mariner

I'm a little stuck... Click here to teach me more about this clue!

'jack' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for mariner that I've seen before include "Sailor" , "Man of the sea" , "See 13" , "'''The Rime of the Ancient ...'' (Coleridge) (7)'" , "Bluejacket" .)

I've seen this clue in The Independent.
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.