The most common and most likely answer to this crossword clue is the 8 letter word SEAFARER
I've seen this crossword clue in Financial Times
S
E
A
F
A
R
E
R
More clues leading to the result SEAFARER
- Burn some food in this salt
- Refer to more balanced broadcast for one on board
- One looking around in the distance – maybe from crow’s nest?
- Captain, say, is wise man hanging on to a remote
- A good way to obstruct someone looking for salt
- Look more attractive, said Jack
- Jack‘s a long way off being taken in by psychic
- Salt produced by burn covering food
- Sailor‘s fears are disguised
- Cook perhaps displays food with brand on the outside
Buddy explains!

The straight part
We know that "Captain, say" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case captain, say = seafarer.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 SEAFARER mean?
SEAFARER noun- A sailor or mariner.
- One who travels by sea.