The most common and most likely answer to this crossword clue is the 6 plus 3 letter word IRONED OUT
I've seen this crossword clue in The Guardian
I
R
O
N
E
D
O
U
T
More clues leading to the result IRONED OUT
- Strong suspicion, it's said, must be dealt with
- Cleared up as routine do got out of control
- Got right press journalist dismissed
- Retaining act, routine reforms resolved
- Strong suspicion, when voiced, is resolved
- Corrected – decreased even?
- Did some evening work on board, perhaps
- Diner, too drunk to eat menu’s last item, settled
- No outride fixed and made smooth
- Put right in print; did press at first?
Buddy explains!

The straight part
We know that "resolved" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case resolved = ironed out.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.