The most common and most likely answer to this crossword clue is the 7 letter word ASSURED
I've seen this crossword clue in Financial Times
A
S
S
U
R
E
D
More clues leading to the result ASSURED
- Confident when taken to court about source of revenue
- Confident when Communist tours Soviet Union's capitals
- Confident fool heading university rose?
- . Certain of a boat on the River Dee
- Confident like Bob, and frightfully rude
- Reads us novel filled with aplomb
- Confident, like retiring American left-winger
- Fool’s rude, that’s for certain
- Certain Country backed deporting international journalist
- Confident fool shamefaced about United
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 ASSURED mean?
ASSURED verb- To make sure and secure.
- (followed by that or of) To give (someone) confidence in the trustworthiness of (something).
- To guarantee, promise (to do something).
- To reassure.
- Guaranteed; secure.
- Self-confident; self-assured; sure.