The most common and most likely answer to this crossword clue is the 4 plus 2 letter word PLAY UP
I've seen this crossword clue in The Guardian
P
L
A
Y
U
P
More clues leading to the result PLAY UP
- Turn the spotlight on drama at college
- Emphasise trouble
- . Misbehave in performance, getting excited
- Throw a tantrum when baby eats plant
- Redouble one’s efforts to find parking close to store for future use
- Badly behave and give undue prominence to it
- Emphasise power with shot on court
- Be awkward, as conceited young man that’s put inside
- Spotlight malfunction
- Young fellow about to bet and behave badly
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.