The most common and most likely answer to this crossword clue is the 8 letter word ATTITUDE
I've seen this crossword clue in The Guardian
A
T
T
I
T
U
D
E
More clues leading to the result ATTITUDE
- . The manner and inherent ability to get a model for a penny
- . Studied posture in uncooperative behaviour
- Insolent manner of singer Smith knocking off piano duet badly
- Bearing gift, having time for papa
- Outlook from carriage
- Pose as model in topless play
- Pose with a model bird due to fly
- Tiny alteration in height, and hence position
- Position at match containing leaders of team under duress
- Bird in a duet struck a pose
Buddy explains!

The straight part
We know that "Pose" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pose = attitude.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 ATTITUDE mean?
ATTITUDE noun- The position of the body or way of carrying oneself.
- Disposition or state of mind.
- The orientation of a vehicle or other object relative to the horizon, direction of motion, other objects, etc.
- A position similar to arabesque, but with the raised leg bent at the knee.
- To assume or to place in a particular position or orientation; to pose.
- To express an attitude through one's posture, bearing, tone of voice, etc.