The most common and most likely answer to this crossword clue is the 5 letter word ROODS
I've seen this crossword clue in Financial Times
R
O
O
D
S
More clues leading to the result ROODS
Buddy explains!

The straight part
We know that "Crosses" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case crosses = roods.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 ROODS mean?
ROODS noun- A crucifix, cross, especially in a church.
- A measure of land area, equal to a quarter of an acre.
- A measure of five and a half yards in length.