The most common and most likely answer to this crossword clue is the 8 letter word TEETOTAL
I've seen this crossword clue in The Daily Telegraph
T
E
E
T
O
T
A
L
More clues leading to the result TEETOTAL
- Dry European drink in greenish-blue
- Being dry, wild duck swallows energy drink
- Not drinking alcohol, Peg to speak briefly
- Not drinking: one should be eighteen?
- Count on support for driver on the wagon
- Leaving booze wild duck swallows energy drink
- Dry cart tipped over in shade
- This comes to 18 on a course that’s dry
- A lot trained after time with aid for drivers – like the AA?
- Dry, eighteen of course?
Buddy explains!

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 TEETOTAL mean?
TEETOTAL noun- One who abstains from drinking alcohol.
- Abstinent from alcohol; never drinking alcohol.
- Opposed to the drinking of alcohol.
- Total.