The most common and most likely answer to this crossword clue is the 11 letter word REMEMBRANCE
I've seen this crossword clue in The Daily Telegraph
R
E
M
E
M
B
R
A
N
C
E
Buddy explains!
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 REMEMBRANCE mean?
REMEMBRANCE noun- The act of remembering; a holding in mind, or bringing to mind; recollection.
- The state of being remembered, or held in mind; memory, recollection.
- Something remembered; a person or thing kept in memory.
- That which serves to keep in or bring to mind; a memento, a memorial, a souvenir, a token; a memorandum or note of something to be remembered.
- The power of remembering; the reach of personal knowledge; the period over which one's memory extends.
- Something to be remembered; an admonition, counsel, instruction.