The most common and most likely answer to this crossword clue is the 9 letter word INTERSECT
I've seen this crossword clue in The Guardian
I
N
T
E
R
S
E
C
T
More clues leading to the result INTERSECT
- Meet religious group to the east of Bury
- Cross from wing with Italian team taking the lead
- Bury school making one cross
- Meet at its centre as arranged
- Cross waves in secret to defect, ultimately
- Cross, they’re oddly bitten by mosquito?
- Cut into short crust of croissant
- Cross between religious groups
- Cross brief entering popular court
- Cross put in ground, by order
Buddy explains!

The straight part
We know that "Cross" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cross = intersect.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 INTERSECT mean?
INTERSECT verb- To cut into or between; to cut or cross mutually; to divide into parts.
- Of two sets, to have at least one element in common.