The most common and most likely answer to this crossword clue is the 9 letter word ELECTRICS
I've seen this crossword clue in The Guardian
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More clues leading to the result ELECTRICS
Buddy explains!
The straight part
We know that "Wiring" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case wiring = electrics.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 ELECTRICS mean?
ELECTRICS noun- (usually with definite article) Electricity; the electricity supply.
- An electric car.
- An electric toothbrush.
- A substance or object which can be electrified; an insulator or non-conductor, like amber or glass.
- Fencing with the use of a body wire, box, and related equipment to detect when a weapon has touched an opponent.
- All the electrical components and wiring of a machine or system.