The most common and most likely answer to this crossword clue is the 4 letter word PROM
P
R
O
M
More clues leading to the result PROM
- Concert where some stand for anthem finally
- Concert for Mozart, primarily
- Concert given publicity, not half
- Englishman in Oz absorbing start of royal concert
- In Blackpool, say, where one can walk for miles?
- In favour of Mahler’s First for concert
- No end of publicity for concert
- Dance for money, primarily
- Piano tuner’s first to leave punctually for concert
- Concert for first of May
Buddy explains!

The straight part
We know that "Walk" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case walk = prom.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 PROM mean?
PROM noun- A promenade concert
- (abbreviation) promenade
- A formal ball held at a high school or college on special occasions, e.g. near the end of the academic year