The most common and most likely answer to this crossword clue is the 7 letter word MOJITOS
I've seen this crossword clue in The Daily Telegraph
M
O
J
I
T
O
S
Buddy explains!
The straight part
We know that "cocktails" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cocktails = mojitos.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 MOJITOS mean?
MOJITOS noun- A Cuban cocktail, generally made from rum, lime, sugar, mint, etc.