The most common and most likely answer to this crossword clue is the 7 letter word DASHERS
D
A
S
H
E
R
S
Buddy explains!
The straight part
We know that "Sprinters" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sprinters = dashers.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 DASHERS mean?
DASHERS noun- A person who dashes; a fast runner.
- That which dashes or agitates.
- A dashboard or splashboard.
- One who makes an ostentatious parade or display.