The most common and most likely answer to this crossword clue is the 5 letter word YERBA
I've seen this crossword clue in The Times
Y
E
R
B
A
More clues leading to the result YERBA
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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 YERBA mean?
YERBA noun- Ilex paraguariensis, a species of holly native to southern South America; or the dried leaves and twigs of this plant, used to make the caffeine-rich beverage mate.