The most common and most likely answer to this crossword clue is the 4 plus 4 letter word ROAD RAGE
I've seen this crossword clue in The Guardian
R
O
A
D
R
A
G
E
More clues leading to the result ROAD RAGE
- Going crazy? On the way, certainly
- A violent outburst on the way?
- Paddy on the way?
- A rare dog barking? Could be violence on the way
- Way gear is broken causes loss of control while driving
- A violent storm on the way?
- A tedious occupation in eggs — one’s driven mad with this?
- M-madness?
- A rare dog going wild — a problem for a driver
- Broken gear after half yard produces anger from driver
Buddy explains!
The straight part
We know that "a driving passion" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a driving passion = road rage.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.