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

The straight part
We know that "Disseminated" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case disseminated = scattered.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 SCATTERED mean?
SCATTERED verb- To (cause to) separate and go in different directions; to disperse.
- To distribute loosely as by sprinkling.
- To deflect (radiation or particles).
- To occur or fall at widely spaced intervals.
- To frustrate, disappoint, and overthrow.
- To be dispersed upon.
- Seemingly randomly distributed.
- (of clouds) covering three eighths to four eighths of the sky.
- (of precipitation) affecting 30 percent to 50 percent of a forecast zone.