The most common and most likely answer to this crossword clue is the 8 letter word SPEEDING
I've seen this crossword clue in Independent
S
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Buddy explains!
The straight part
We know that "going too fast" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case going too fast = speeding.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 SPEEDING mean?
SPEEDING verb- To succeed; to prosper, be lucky.
- To help someone, to give them fortune; to aid or favour.
- To go fast.
- To exceed the speed limit.
- To increase the rate at which something occurs.
- To be under the influence of stimulant drugs, especially amphetamines.
- To be expedient.
- To hurry to destruction; to put an end to; to ruin.
- To wish success or good fortune to, in any undertaking, especially in setting out upon a journey.
- To cause to make haste; to dispatch with celerity; to drive at full speed; hence, to hasten; to hurry.
- To hasten to a conclusion; to expedite.
- (Instance of) acceleration.
- Driving faster than the legal speed limit.
- Travelling very fast; moving at speed.
- Specifically, travelling at an illegal speed (of vehicles, motorists).
- Under the influence of the drug speed; high on amphetamines.