The most common and most likely answer to this crossword clue is the 4 plus 3 letter word SLOE GIN
I've seen this crossword clue in Financial Times
S
L
O
E
G
I
N
More clues leading to the result SLOE GIN
- Reportedly late home after good tipple
- Succeeded with computer access, quaffing energy drink
- Old Nigel’s retiring, going out for a drink
- Caesar’s fourth legion’s ill making booze
- Drunken legions drink this . . . .
- Drink makes lines go fuzzy
- Drink making legions tipsy
- Foreign Legion’s drink
- Hard work at home, energy limited? Drink needed
- Legion’s mixed drink
Buddy explains!

The straight part
We know that "this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case this = sloe gin.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.