The most common and most likely answer to this crossword clue is the 9 letter word PERCEIVED
P
E
R
C
E
I
V
E
D
Buddy explains!
The straight part
We know that "understood" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case understood = perceived.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 PERCEIVED mean?
PERCEIVED verb- To become aware of, through the physical senses or by thinking; to see; to understand.
- Generally recognized to be true.
- As seen or understood by an individual.