The most common and most likely answer to this crossword clue is the 10 letter word PRODUCTION
I've seen this crossword clue in The Guardian
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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 PRODUCTION mean?
PRODUCTION noun- The act of producing, making or creating something.
- The act of bringing something forward, out etc. for use or consideration.
- The act of being produced.
- The total amount produced.
- The presentation of a theatrical work.
- An occasion or activity made more complicated than necessary.
- That which is manufactured or is ready for manufacturing in volume (as opposed to a prototype or conceptual model).
- The act of lengthening out or prolonging.
- An extension or protrusion.
- A rewrite rule specifying a symbol substitution that can be recursively performed to generate new symbol sequences. (More information on Wikipedia.)
- The environment where finished code runs, as opposed to staging or development.
- (in the plural) Written documents produced in support of the action or defence.