The most common and most likely answer to this crossword clue is the 4 letter word ASTI
I've seen this crossword clue in The Guardian
A
S
T
I
More clues leading to the result ASTI
- Drink from a small can, briefly
- On reflection, it’s a sparkling wine
- Wine served in Boudicca’s time
- Drink having appeal in different forms, on reflection
- It’s a strange sort of wine
- Sparkling wine son dipped into shortly after midday
- Appeal over upset wine, a white one
- Shortly up and about, I’m sparkling
- Drink’s flipping sex and sex appeal
- Italian white jacket's taken off over the hill
Buddy explains!
The straight part
We know that "Maybe not 25’s choice" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case maybe not 25’s choice = asti.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.