The most common and most likely answer to this crossword clue is the 5 letter word MOCHA
I've seen this crossword clue in Independent
M
O
C
H
A
More clues leading to the result MOCHA
- Doctor the tea and get coffee?
- In conversation one derides instant tea and coffee
- Drink in an old-fashioned way more tea
- Drink tea sitting beside Maureen
- Old bird has companion in for coffee
- Coffee, second brew
- Second tea or coffee
- Tea after second coffee
- Coffee and brief conversation with doctor
- Scornful sort called out for coffee
Buddy explains!

The straight part
We know that "coffee" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case coffee = mocha.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 MOCHA mean?
MOCHA noun- A coffee drink with chocolate syrup added, or a serving thereof; a caffè mocha.
- A coffee and chocolate mixed flavour.
- A dark brown colour, like that of mocha coffee.
- A strong Arabian coffee.
- An Abyssinian weight, equivalent to a Troy grain.
- Of a dark brown colour, like that of mocha coffee.