The most common and most likely answer to this crossword clue is the 8 letter word STAIRWAY
I've seen this crossword clue in Financial Times
S
T
A
I
R
W
A
Y
More clues leading to the result STAIRWAY
- Good person going over route for flight
- Series of steps from guy absorbing atmosphere with wife
- Flight route on a flight route
- Guy hijacks Ireland– Washington flight
- Flight path for pilot on superjet cleared
- Continue circling sky with flight
- Steps from passage beneath street
- Small tunnel, originally ventilation passage, with room for steps
- Perhaps emergency exit leads to steel duct
Buddy explains!

The straight part
We know that "flight" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case flight = stairway.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 STAIRWAY mean?
STAIRWAY noun- A set of steps allowing one to walk up or down.