The most common and most likely answer to this crossword clue is the 11 letter word PRESENTIENT
P
R
E
S
E
N
T
I
E
N
T
Buddy explains!
The straight part
We know that "Having a feeling of foreboding" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case having a feeling of foreboding = presentient.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 PRESENTIENT mean?
PRESENTIENT adjective- Having a presentiment.
- Not yet having achieved sentience.