The most common and most likely answer to this crossword clue is the 7 letter word MARINER
M
A
R
I
N
E
R
More clues leading to the result MARINER
- Voyager’s home, having visited part of moon at end of tour
- Sailor runs into sea, outwardly eager
- Seafarer, one taken in by eponymous miser
- Horse runs around in tar
- Sailor originally rowed into state by river
- Tar: spoil ship with lack of litre?
- Colliery worker defending Arab collier?
- Tar of wreck penetrated by saltwater, not initially
- Probe digger fording a river
- Jack shows Silas around island
Buddy explains!

The straight part
We know that "Sailor" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sailor = mariner.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does MARINER mean?
MARINER noun- A sailor.