The most common and most likely answer to this crossword clue is the 3 plus 7 letter word FOR CERTAIN
I've seen this crossword clue in The Daily Telegraph
F
O
R
C
E
R
T
A
I
N
More clues leading to the result FOR CERTAIN
- Drive home after accident, no doubt
- Definitely compel downfall – about time!
- Army, perhaps, taking time in bad weather? Definitely!
- Definitely in favour of creating changes without a hint of glitz
- Power on train affected, without a doubt
- Strength in art debatable, surely
- I rant terribly when sat on by police? Definitely
- Definitely drive. Train is out
- Drive new train without any doubt
- Might town be flooded by downpour? Definitely
Buddy explains!
The straight part
We know that "Definitely" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case definitely = for certain.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.