The most common and most likely answer to this crossword clue is the 10 letter word LOGISTICAL
I've seen this crossword clue in The Times
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More clues leading to the result LOGISTICAL
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The straight part
We know that "Like complex organisation" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case like complex organisation = logistical.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 LOGISTICAL mean?
LOGISTICAL adjective- Relating to symbolic logic.
- Relating to the logistic function.
- Using sexagesimal fractions, especially in arithmetic or logarithms.
- Relating to basic arithmetic.
- Skilled in calculating.
- Proportional.
- (operations) Relating to logistics.
- Relating to logistics.