The most common and most likely answer to this crossword clue is the 4 letter word BREW
I've seen this crossword clue in The Daily Telegraph
B
R
E
W
More clues leading to the result BREW
- Hombre who stashes drink
- Made move, swapping sides in plot
- British bridge partners make tea?
- Language when ambassador’s hatched plot
- Tea break really excites workers, first of all
- Coffee maybe, and what’s needed for follower? Brandy coming up
- . Prepare the man to leave out ancient language
- Plot raising a section of 7 Down
- Mixture of, oddly, barley and whiskey
- British declared regret for cuppa
Buddy explains!

The straight part
We know that "tea" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tea = brew.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 BREW mean?
BREW noun- The mixture formed by brewing; that which is brewed; a brewage, such as a cup of tea or a brewed beer.
- A beer.
- To make tea or coffee by mixing tea leaves or coffee beans with hot water.
- To heat wine, infusing it with spices; to mull.
- To make a hot soup by combining ingredients and boiling them in water.
- To make beer by steeping a starch source in water and fermenting the resulting sweet liquid with yeast.
- To foment or prepare, as by brewing
- To attend to the business, or go through the processes, of brewing or making beer.
- (of an unwelcome event) To be in a state of preparation; to be mixing, forming, or gathering.
- To boil or seethe; to cook.
- A hill or overhanging cliff.