The most common and most likely answer to this crossword clue is the 9 letter word UNDECIDED
I've seen this crossword clue in The Guardian
U
N
D
E
C
I
D
E
D
More clues leading to the result UNDECIDED
- Dundee CID could be in two minds
- Not certain if indeed cud is chewed
- Back cut into cubes in surreal nude, floating
- Detectives to be involved in a French exploit? That’s doubtful
- Ambivalent zombie drops acid and Ecstasy first, then drops AA?
- Hesitant coppers enthralled by document with naked nuns on the front
Buddy explains!

The straight part
We know that "in two minds" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case in two minds = undecided.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 UNDECIDED mean?
UNDECIDED verb- To reverse or recant (a previous decision).
- A voter etc. who has not yet come to a decision.
- Open and not yet settled or determined.
- Uncommitted, not having reached a decision.