The most common and most likely answer to this crossword clue is the 10 letter word ABOUT-FACE
A
B
O
U
T
-
F
A
C
E
More clues leading to the result ABOUT-FACE
Buddy explains!

The straight part
We know that "to reverse direction" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case to reverse direction = about-face.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 ABOUT-FACE mean?
ABOUT-FACE noun- An abrupt turn to face the opposite direction.
- A reversal in direction; reversal of attitude or opinion.
- To turn 180 degrees to face the opposite direction
- To change opinion or attitude drastically.