The most common and most likely answer to this crossword clue is the 6 letter word RADIAL
I've seen this crossword clue in Financial Times
R
A
D
I
A
L
More clues leading to the result RADIAL
- Spoke favouring reform — not Conservative
- In Leningrad, I always spoke
- Spoke right before a call
- Moving away from centre, being leftist not Conservative
- Spreading money about these days
- Artist, one investigating a left tyre
- Right, a face like Michelin’s blown-up product?
- Artist settled back and spoke
- Lacking conviction initially, advocate of political reform spoke
- Like some tyres artist set up
Buddy explains!

The straight part
We know that "Moving away from centre" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case moving away from centre = radial.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 RADIAL mean?
RADIAL noun- A radial tire / radial tyre.
- Arranged like rays that radiate from, or converge to a common centre.
- Moving along a radius.
- Of, or relating to the radius bone.
- Of, or relating to the radius (vein), and/or the wing areas next to it.
- Developing uniformly on all sides.