The most common and most likely answer to this crossword clue is the 9 letter word REN(EW)AL
I've seen this crossword clue in The Guardian
R
E
N
(
E
W
)
A
L
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 REN(EW)AL mean?
REN(EW)AL noun- The act of renewing.
- An offensive action made immediately after a parried one.