The most common and most likely answer to this crossword clue is the 4 letter word OUZO
O
U
Z
O
Buddy explains!
The straight part
We know that "this, perhaps" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this, perhaps = ouzo.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 OUZO mean?
OUZO noun- An anise-flavoured aperitif, originating in Greece.
- A serving of this drink.