The most common and most likely answer to this crossword clue is the 11 letter word OVERWEENING
O
V
E
R
W
E
E
N
I
N
G
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 OVERWEENING mean?
OVERWEENING adjective- Unduly confident; arrogant
- Exaggerated, excessive.
- An excessively high opinion of oneself or one’s abilities; presumption, arrogance.
- To think too highly or arrogantly of (oneself).
- To make or render arrogant and overweening.
- To overwhelm.