The most common and most likely answer to this crossword clue is the 6 letter word DREAMT
I've seen this crossword clue in The Times
D
R
E
A
M
T
More clues leading to the result DREAMT
- Fancied a small drink around start of extra time
- Staunch guards on time had ambition
- Opening of market in free trade had a vision
- Fancied wee snifter about a quarter to? Not half
- Read about Montana, got into a reverie
- Imagined a red convertible in front of mountain
- Imagined team getting drunk after drive
- Daughter mater unexpectedly conceived
Buddy explains!

The straight part
We know that "Imagined" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case imagined = dreamt.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 DREAMT mean?
DREAMT verb- To see imaginary events in one's mind while sleeping.
- To hope, to wish.
- To daydream.
- To envision as an imaginary experience (usually when asleep).
- To consider the possibility (of).
- Imagined or only extant in a dream or dreams.