The most common and most likely answer to this crossword clue is the 10 letter word OVERHAULED
I've seen this crossword clue in The Guardian
O
V
E
R
H
A
U
L
E
D
Buddy explains!
The straight part
We know that "repaired" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case repaired = overhauled.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 OVERHAULED mean?
OVERHAULED verb- To modernize, repair, renovate, or revise completely.
- To pass, overtake, or travel past.
- To keep (running rigging) clear, and see that no hitch occurs.
- To search (a ship) for contraband goods.