The most common and most likely answer to this crossword clue is the 9 letter word RECOLLECT
I've seen this crossword clue in The Daily Telegraph
R
E
C
O
L
L
E
C
T
More clues leading to the result RECOLLECT
- Remember prayer at end of Scripture lesson maybe
- Bring to mind soldiers supported by prayer
- Think of putting bible class with prayer
- Call up troops, two officers besieging City
- Call to mind extremely repetitive prayer
- Summon up prayer on religious subject
- Call to mind even parts of Greek prayer
- Don’t forget to get together again
- Call to mind first half of authentic prayer
- Remember about part of string section brought up in court
Buddy explains!

The straight part
We know that "Remember" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case remember = recollect.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 RECOLLECT mean?
RECOLLECT verb- To recall; to collect one's thoughts again, especially about past events.
- To collect (things) together again.
- To compose oneself.