The most common and most likely answer to this crossword clue is the 5 plus 5 plus 4 letter word THREE POINT TURN
I've seen this crossword clue in The Sunday Telegraph
T
H
R
E
E
P
O
I
N
T
T
U
R
N
More clues leading to the result THREE POINT TURN
Buddy explains!
The straight part
We know that "driving skill" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case driving skill = three point turn.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.