The most common and most likely answer to this crossword clue is the 4 letter word APPS
A
P
P
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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 APPS mean?
APPS noun- An application (program), especially a small one designed for a mobile device.
- Application (use, purpose; not a computer program)
- Application (to a college etc.)
- Appetizer
- An appearance in a game (e.g., a player with 10 apps in a season played 10 times)