The most common and most likely answer to this crossword clue is the 5 plus 5 letter word SPARE PARTS
I've seen this crossword clue in Financial Times
S
P
A
R
E
P
A
R
T
S
More clues leading to the result SPARE PARTS
- Fancy paper’s used with skill on small items for repair
- Angry? Tie up loose ends
- Extra bits in box, belt and buckle finally hauled up
- Uncast replacements?
- Possibly Bath agent with skills for providing bits and pieces
- Order papers on music, dance, etc, extra bits
- A strap’s somehow wrapped around material — such may effect repair
- Replacements for spring on belt sent up
- Star sapper in battle? Engineers can make use of such
- They replace European character involved in disputes
Buddy explains!

The straight part
We know that "replacements" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case replacements = spare parts.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.