The most common and most likely answer to this crossword clue is the 8 letter word OVERLOAD
I've seen this crossword clue in Financial Times
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More clues leading to the result OVERLOAD
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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 OVERLOAD mean?
OVERLOAD noun- An excessive load.
- The damage done, or the outage caused by such a load.
- An overloaded version of a function.
- To load excessively
- To provide too much power to a circuit
- To create different functions for the same name, to be used in different contexts
- To fail due to excessive load