The most common and most likely answer to this crossword clue is the 4 plus 4 letter word SLIP ROAD
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More clues leading to the result SLIP ROAD
- Motorway access area Pole crosses by mistake
- After small mistake, travelled it’s said in exit lane
- Approach adult in bar after mistake
- Cock-up – general initially missing part of motorway complex
- Driver’s way off shaping solid par
- With no time tips load off across right part of motorway
- Mistake way driving on this?
- Motorway access from Petticoat Lane?
- Field includes this measure round middle of contraflows — a motorway feature?
- One in field with stick taking in a motorway feature?
Buddy explains!

The straight part
We know that "driving on this?" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case driving on this? = slip road.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.