The most common and most likely answer to this crossword clue is the 11 letter word SCREWDRIVER
I've seen this crossword clue in Financial Times
S
C
R
E
W
D
R
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V
E
R
More clues leading to the result SCREWDRIVER
- Cocktail shared at first with group of workers and chauffeur
- Cocktail prison officer finally enjoyed on Thames, perhaps?
- Turner’s drink
- Cocktail in company in small club
- Do motorist: drink shows up
- Prison officer goes to club for cocktail
- In South Germany, sailors on Rhine perhaps delivering drink
- Money earned by cabbie? That should turn some heads!
- Drink with sailors in small club
- Drink with team in small club
Buddy explains!

The straight part
We know that "Turner/drink" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case turner/drink = screwdriver.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 SCREWDRIVER mean?
SCREWDRIVER noun- A hand or machine tool which engages with the head of a screw and allows torque to be applied to turn the screw, thus driving it in or loosening it.
- A drink made of vodka and orange juice.