The most common and most likely answer to this crossword clue is the 2 plus 4 letter word IN CASE
I've seen this crossword clue in Financial Times
I
N
C
A
S
E
More clues leading to the result IN CASE
- Packed, to be on the safe side
- Packed away as a precaution
- Boxed, so as to be safe
- Peruvians head east as a precaution
- Where wine may be found, should the need arise
- Where clothes may be packed if required
- Packed as a precaution?
- Patient with it seen first, as a precaution
- As a precaution if appearing at court?
- Wine may be delivered like this, just to be safe
Buddy explains!

The straight part
We know that "Where wine may be found/should the need arise" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case where wine may be found/should the need arise = in case.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.