The most common and most likely answer to this crossword clue is the 5 letter word HURRY
I've seen this crossword clue in The Daily Telegraph
H
U
R
R
Y
Buddy explains!

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 HURRY mean?
HURRY noun- Rushed action.
- Urgency.
- An incidence of a defensive player forcing the quarterback to act faster than the quarterback was prepared to, resulting in a failed offensive play.
- A tremolando passage for violins, etc., accompanying an exciting situation.
- To do things quickly.
- Often with up, to speed up the rate of doing something.
- To cause to be done quickly.
- To hasten; to impel to greater speed; to urge on.
- To impel to precipitate or thoughtless action; to urge to confused or irregular activity.
- To put: to convey coal in the mine, e.g. from the working to the tramway.