The most common and most likely answer to this crossword clue is the 8 letter word SPRITZER
I've seen this crossword clue in Financial Times
S
P
R
I
T
Z
E
R
More clues leading to the result SPRITZER
- Drink that’s small for each, without ostentatious luxury
- Outside hotel, salesmen knocked back drink
- Drink in hotel entertained by upwardly mobile salesmen?
- Leaders of Sao Paulo race given bottled Tizer to drink
- After trips out, love endless white wine with soda
- Special hotel pressing monarch’s drink
- Agents standing around hotel, drink
- Retired salesmen take over grand hotel for drink
- Drink nearly nothing after drunken strip
- Salespeople backed taking in somewhere posh for drink
Buddy explains!

The straight part
We know that "a drink" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a drink = spritzer.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 SPRITZER mean?
SPRITZER noun- A chilled long drink, made from white wine and soda water.
- A windscreen washer.
- A spray bottle.