The most common and most likely answer to this crossword clue is the 4 letter word AYAH
A
Y
A
H
Buddy explains!
The straight part
We know that "Maid" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case maid = ayah.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 AYAH mean?
AYAH noun- A South Asian female servant, maid or nanny, historically, often one working for Europeans in South Asia.
- A verse in the Quran.