The most common and most likely answer to this crossword clue is the 1 letter word H
H
More clues leading to the result H
- F [loud] with UNCTION [obsequiousness] meeting A-LIST [bunch of celebs].
- King of Babylonia, father of Egypt and Greek character connected to disheartened Jewish leader
- At once needing animal doctor? He must come round
- Asian island frequency not used in four MHz broadcast
- H
- 11 EMERALDS/PHEASANT
- Hard Mike restrained by Robert’s powerful arm
- See 20 Across
- See 5 Down
- was our last in. Having a V already there as a checking letter, we assumed this was the ‘victory’ of the wordplay until the penny dropped. Our favourite today.
Buddy explains!

The straight part
We know that "King of Babylonia," is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case king of babylonia, = h.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 H mean?
H interjection- (chiefly Internet slang) Used as a filler response when one does not have a response to use. Almost always used by itself.
- A powerful and addictive drug derived from opium producing intense euphoria classed as an illegal narcotic in most of the world.
- A number system with base sixteen, using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E and F, most used in computing as a hexadecimal digit can represent four bits, half a standard byte.
- A number expressed in the hexadecimal system.
- A blow; a punch; a striking against; the collision of one body against another; the stroke that touches anything.
- Something very successful, such as a song, film, or video game, that receives widespread recognition and acclaim.
- An attack on a location, person or people.
- A collision of a projectile with the target.
- A match found by searching a computer system or search engine
- A measured visit to a web site, a request for a single file from a web server.
- An approximately correct answer in a test set.
- The complete play, when the batter reaches base without the benefit of a walk, error, or fielder’s choice.
- A dose of an illegal or addictive drug.
- A premeditated murder done for criminal or political purposes.
- A peculiarly apt expression or turn of thought; a phrase which hits the mark.
- A move that throws one of the opponent's men back to the entering point.
- A game won after the adversary has removed some of his men. It counts for less than a gammon.
- Landline (telephone in one's house)
- A time period of sixty minutes; one twenty-fourth of a day.
- A season, moment, or time.
- The time.
- (in the plural) Used after a two-digit hour and a two-digit minute to indicate time.
- (in the plural) The set times of prayer, the canonical hours, the offices or services prescribed for these, or a book containing them.
- A distance that can be traveled in one hour.