The most common and most likely answer to this crossword clue is the 8 letter word DEFINITE
D
E
F
I
N
I
T
E
More clues leading to the result DEFINITE
- What initiates disquiet about fellow in computing etc for certain
- Such article as “The Firm”
- Sure fine with diet having been fixed
- Like a particular article for sure
- Certain extract from bulletin, if edited the wrong way
- Sure, some get in if editor is rejected
- What dictionaries do about it is quite clear
- Sure as to which article it is
- Give description about sex appeal? Sure!
- Handy to include one new setter, last puzzle guaranteed
Buddy explains!

The straight part
We know that "Sure" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case sure = definite.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 DEFINITE mean?
DEFINITE noun- (grammar) A word or phrase that designates a specified or identified person or entity.
- Anything that is defined or determined.
- Having distinct limits.
- Free from any doubt.
- Determined; resolved; decided.
- Designating an identified or immediately identifiable person or thing, or group of persons or things