The most common and most likely answer to this crossword clue is the 7 letter word JOURNEY
I've seen this crossword clue in The Guardian
J
O
U
R
N
E
Y
Buddy explains!
The straight part
We know that "travel" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case travel = journey.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 JOURNEY mean?
JOURNEY noun- A set amount of travelling, seen as a single unit; a discrete trip, a voyage.
- Any process or progression likened to a journey, especially one that involves difficulties or personal development.
- A day.
- A day's travelling; the distance travelled in a day.
- A day's work.
- The weight of finished coins delivered at one time to the Master of the Mint.
- (collective) A group of giraffes.
- To travel, to make a trip or voyage.