The most common and most likely answer to this crossword clue is the 5 plus 5 letter word FALSE START
I've seen this crossword clue in The Daily Telegraph
F
A
L
S
E
S
T
A
R
T
More clues leading to the result FALSE START
- Disqualification may follow this after SALT’s disputed
- Not the true origin of race?
- Beginning to doubt?
- Left as upset about headliner beginning to question
- As something before its proper time, it’s not going off with a bang
- This could disqualify athlete getting off faster — last
- Not a true origin of race?
- Tarts jumping the gun
- Unsuccessful attempt to begin developing flatter ass
- Female with a line ready about celebrity makes flawed beginning
Buddy explains!
The straight part
We know that "going too quickly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case going too quickly = false start.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.