The most common and most likely answer to this crossword clue is the 5 letter word PRANK
I've seen this crossword clue in Independent
P
R
A
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K
More clues leading to the result PRANK
- Quietly utter joke
- Practical joke is quietly disgusting
- Main part of a seesaw turning left to right as a practical joke
- A little mischief on parking space for cabbies
- Mischievous act in Portugal, giving off bad smell
- Parking place for taxis to wait is a joke
- Copper’s awful joke
- Stunt, parking where taxis park
- Practical joke is quietly offensive
- Board changing hands is a joke!
Buddy explains!

The straight part
We know that "a practical joke" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a practical joke = prank.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 PRANK mean?
PRANK noun- A practical joke or mischievous trick.
- An evil deed; a malicious trick, an act of cruel deception.
- To perform a practical joke on; to trick.
- To call someone's phone and promptly hang up
- To adorn in a showy manner; to dress or equip ostentatiously.
- To make ostentatious show.
- Full of gambols or tricks.