The most common and most likely answer to this crossword clue is the 7 letter word HALCYON
H
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More clues leading to the result HALCYON
- Prince, not exactly that carefree
- Happy as a kingfisher?
- Not quite half century that’s happy and peaceful
- Happy preparing nachos only, with son away
- Peaceful Young Prince caught over there in Scotland
- Bluff ruler that gets cold-hearted, appearing to be calm
- Calm and peaceful hotel — a lucky town, oddly
- Kingfisher that’s seen better days?
- Calm and peaceful, as any loch could be
- Only 50% chance — disastrous for Kingfisher
Buddy explains!

The straight part
We know that "Kingfisher" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case kingfisher = halcyon.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 HALCYON mean?
HALCYON noun- A kingfisher said in classical mythology to nest on the sea, thereby calming the waters.
- A tropical kingfisher of the genus Halcyon, such as the sacred kingfisher (Halcyon sancta) of Australia.
- Pertaining to the halcyon or kingfisher.
- Calm, undisturbed, peaceful, serene.