The most common and most likely answer to this crossword clue is the 9 letter word EMULATION
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More clues leading to the result EMULATION
Buddy explains!

The straight part
We know that "copying" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case copying = emulation.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 EMULATION mean?
EMULATION noun- The endeavor or desire to equal or excel someone else in qualities or actions.
- Jealous rivalry; envy; envious contention.
- Running a program or other software designed for a different system, by simulating parts of the other system.