The most common and most likely answer to this crossword clue is the 6 letter word TRIPLE
I've seen this crossword clue in Financial Times
T
R
I
P
L
E
More clues leading to the result TRIPLE
- Booze price’s let off
- Peal of bells, stuff holding line?
- At end of journey the French drink
- Nonsense about pound — this could bring better profit
- Big shot sounded out when cycling
- Nonsense written about Laurel originally having three parts
- Act unrestrainedly on cycle three times
- Trinity student stops nonsense
- Tour the French will make three times
- Very big drink that’s rubbish, litre swallowed
Buddy explains!

The straight part
We know that "drink (no small amount!" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case drink (no small amount! = triple.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 TRIPLE mean?
TRIPLE noun- Three times or thrice the number, amount, size, etc
- A drink with three portions of alcohol.
- A hamburger with three patties.
- A three-base hit
- A three-point field goal
- A takeout shot in which three stones are removed from play.
- A sequence of three elements or 3-tuple.
- To multiply by three
- To get a three-base hit
- To become three times as large
- To serve or operate as (something), in addition to two other functions.
- Made up of three related elements, often matching
- Of three times the quantity.
- Designed for three users.
- Folded in three; composed of three layers.
- Having three aspects.
- Of time, three times as fast as very fast.
- One of three; third.