The most common and most likely answer to this crossword clue is the 3 letter word ALE
I've seen this crossword clue in The Times
A
L
E
More clues leading to the result ALE
- Grog makes you dim when put under pressure
- Beer’s healthy if the head is removed
- Drink said to be healthy in Bow?
- Stout fellow needing no introduction
- Unmarried man, and his companion in the boozer?
- Beer from Wales
- Beer is light with no head
- Cap removed from white drink
- Beer starts to affect lad excessively
- Pole outside pub in estate surrounded by a watery expanse
Buddy explains!

The straight part
We know that "Beer" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case beer = ale.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 ALE mean?
ALE noun- A beer made without hops.
- A beer produced by so-called warm fermentation and not pressurized.
- A festival in English country places, so called from the liquor drunk.