The most common and most likely answer to this crossword clue is the 10 letter word IMAGININGS
I've seen this crossword clue in Independent
I
M
A
G
I
N
I
N
G
S
Buddy explains!

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 IMAGININGS mean?
IMAGININGS noun- Something imagined; a figment of the imagination.