The most common and most likely answer to this crossword clue is the 10 letter word PREDECEASE
P
R
E
D
E
C
E
A
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E
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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 PREDECEASE mean?
PREDECEASE noun- The death of one person or thing before another.
- To die sooner than.