Cryptic crossword clue
Rachel’s sister in meadow lying on top of hay 4

The most common and most likely answer to this crossword clue is the 4 letter word LEAH

I've seen this crossword clue in The Daily Telegraph
L
E
A
H

Buddy explains!

The straight part
We know that "Rachel’s sister" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rachel’s sister = leah.
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.

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