The most common and most likely answer to this crossword clue is the 9 letter word FURBISHED
I've seen this crossword clue in The Daily Telegraph
F
U
R
B
I
S
H
E
D
Buddy explains!
The straight part
We know that "Renovated" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case renovated = furbished.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 FURBISHED mean?
FURBISHED verb- To polish or burnish.
- To renovate or recondition.
- Polished, burnished.
- Reconditioned.