The most common and most likely answer to this crossword clue is the 2 plus 5 letter word AU PAIRS
I've seen this crossword clue in The Times
A
U
P
A
I
R
S
More clues leading to the result AU PAIRS
- Language students doing homework maybe overheard start of Conference address?
- Foreign workers answer with happy voices
- Foreign helpers reportedly are indebted to couples
- Domestic supporters? Such can be assumed after a success
- Servants to the French couples
- Foreigners who may help couple in Australia
- Clumsy marsupial gets skinned by the foreign nannies
Buddy explains!

The straight part
We know that "Language students doing homework maybe" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case language students doing homework maybe = au pairs.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.