The most common and most likely answer to this crossword clue is the 3 plus 6 letter word GET ACROSS
I've seen this crossword clue in The Daily Telegraph
G
E
T
A
C
R
O
S
S
More clues leading to the result GET ACROSS
- Socrates translated with guidance only beginning to be understood
- Communicate what wrong answer may do
- Answer clue, but not this one? Explain
- Explain what traverse means
- Serve up mostly incomplete — make yourself clear
- Convey what the winner of an honour might do?
- Convey what the winner of an honour might do?
- Drive home, smashing gate on bridge
- Communicate what errors do?
Buddy explains!

The straight part
We know that "Explain/what traverse means" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case explain/what traverse means = get across.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.