The most common and most likely answer to this crossword clue is the 6 plus 6 letter word MOTHER TERESA
M
O
T
H
E
R
T
E
R
E
S
A
More clues leading to the result MOTHER TERESA
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.