The most common and most likely answer to this crossword clue is the 7 letter word TOURIST
I've seen this crossword clue in Financial Times
T
O
U
R
I
S
T
More clues leading to the result TOURIST
- Sightseer, one in French city close to coast
- One travelling to historical city is needing extra time
- Traveller to ancient city street spanning island
- Person travelling to ancient city is German
- Upset teacher bitten by hawk is one likely to take a holiday!
- Solicitor tackles teacher about visiting team player
- Say, daytripper: visit our isthmus, for a while
- Tutor is sorting out sightseer
- US author captivated by infant, one on holiday
- Visitor heading for lawyer, not Japan
Buddy explains!

The straight part
We know that "Visitor" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case visitor = tourist.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 TOURIST mean?
TOURIST noun- Someone who travels for pleasure rather than for business.
- One who visits a place or attends a social event out of curiosity, wanting to watch without commitment or involvement.
- A member of the visiting team in a match.