The most common and most likely answer to this crossword clue is the 3 plus 3 letter word WAR CRY
I've seen this crossword clue in Financial Times
W
A
R
C
R
Y
More clues leading to the result WAR CRY
- Religious publication cautious about credit
- Stomach turned by lines from ‘Remember the Alamo’ for instance
- Sally Ann issues this bloodcurdling scream
- Careful to adopt Catholic slogan
- Something to scare people with and carry, being insecure
- Cautious about Catholic slogan
- Suspicious about councillor’s slogan
- Showing caution about churchman’s aggressive slogan
- Circumspect about extremely cavalier rallying call
- Careful about credit to a rallying slogan
Buddy explains!

The straight part
We know that "Sally Ann issues this/bloodcurdling scream/(" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sally ann issues this/bloodcurdling scream/( = war cry.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.