The most common and most likely answer to this crossword clue is the 6 letter word OOLONG
I've seen this crossword clue in The Times
O
O
L
O
N
G
More clues leading to the result OOLONG
- Tea extended after two ducks
- With unlimited food comes yen for tea
- Old couple extended oriental tea
- Food centre stretched to provide tea
- Old couple yearn for tea
- Ducks pine for tea
- Overstretched? Take time out for tea
- Tea took forever, after taking lid off
- Drink that’s brewed an excess of time after introduction
- Sustained by limitless good tea
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 = oolong.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 OOLONG mean?
OOLONG noun- A partially fermented tea, often roasted, which combines the characteristics of green tea and black tea.