The most common and most likely answer to this crossword clue is the 6 letter word UNSEEN
I've seen this crossword clue in The Times
U
N
S
E
E
N
More clues leading to the result UNSEEN
- A French setting, we hear, in text for translation
- Student initially engrossed by article, in French translation
- Nun wanders around diocese without being observed
- Peacekeeping organisation’s ever escalating needs originally kept hidden
- Remove covers of Sunset Lens in camera
- Nun moves around bishop’s office, not spotted
- Unobtrusive operation around northern border kills many
Buddy explains!

The straight part
We know that "text for translation" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case text for translation = unseen.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 UNSEEN mean?
UNSEEN adjective- Not seen or discovered; invisible.
- Unskilled; inexperienced.
- Not hitherto noticed; unobserved.
- To undo the act of seeing something; to erase the memory of having seen something, or otherwise reverse the effect of having seen something.
- An examination involving material not previously seen or studied.