The most common and most likely answer to this crossword clue is the 6 letter word DREAMY
I've seen this crossword clue in The Sunday Telegraph
D
R
E
A
M
Y
More clues leading to the result DREAMY
- Impractical Mae turning up in dull clothing
- Between covers of daily, some sheets of paper absent
- Looking lovely, Miss West turned up wrapped in towel
- Lovely morning lining nest
- My dear, it can be quite unpractical!
- Lovely paper in daily, lacking content
- Romantic doctor meets Eastern girl
- Fanciful predecessor of PM entering nut repository?
- Read about my being vague
- Romantic GP possibly wanting Eastern girl
Buddy explains!

The straight part
We know that "Lovely" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lovely = dreamy.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 DREAMY mean?
DREAMY adjective- As in a dream; resembling a dream.
- Sexy; handsome; attractive
- Having a pleasant or romantic atmosphere.
- Tending to dream or daydream.