The most common and most likely answer to this crossword clue is the 7 plus 8 letter word PELICAN CROSSING
I've seen this crossword clue in The Daily Telegraph
P
E
L
I
C
A
N
C
R
O
S
S
I
N
G
More clues leading to the result PELICAN CROSSING
- Rocky pass, with one circling safe place to walk
- Quiet priest flogging crucifix blocks safe urban route
- It has flashing lights, potentially splicing corneas
- Road safety feature I’m able to go over in government following parking manoeuvre completed by learner
- Rocky pass, one circling safe place to walk
- Substitute circling — one pass and it could be a walkover
- Pedestrian facility scarce in sloping ground
- Building eclipsing cars: no safe place for pedestrians
- 15a
Buddy explains!
The straight part
We know that "walkover" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case walkover = pelican crossing.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.