The most common and most likely answer to this crossword clue is the 8 letter word ALLEYWAY
A
L
L
E
Y
W
A
Y
More clues leading to the result ALLEYWAY
- Passage orchestra leader left out, ultimately unhappy with practice
- Type of marble style in corridor
- Holler back “Not at home!” outside in narrow lane
- On vacation, rounding squall heading west in passage
- Sounds like gangster has elbow-room in outside passage
- Passage leads to ancient, legendary location encircling Yemen’s wadis, ending in Sana’a yard
- “Twist and Shout”: a retro passage
- Yell when returning in distant passage
Buddy explains!

The straight part
We know that "Passage" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case passage = alleyway.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 ALLEYWAY mean?
ALLEYWAY noun- A narrow street formed by the proximity of adjacent buildings.
- A passage between two rows of cabins in a ship.