The most common and most likely answer to this crossword clue is the 9 letter word PRESENTER
P
R
E
S
E
N
T
E
R
More clues leading to the result PRESENTER
- TV compere now introduces member of the royal family
- I introduce quietly aggrieved person
- Ridiculously stern peer who introduces radio show?
- MC occasionally bears gift after promotion
- Host attending the Queen
- Gift the Queen gives host
- Compere now introduces Her Majesty
- Dislike interrupting a host
- Bedgrudge standing in for a person on screen?
- Parisian’s close to key TV role
Buddy explains!

The straight part
We know that "host" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case host = presenter.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 PRESENTER mean?
PRESENTER noun- Someone who presents a broadcast programme; a compere or master of ceremonies.
- Someone who presents a thing or person to someone else.
- A small handheld device used to remotely control a computerised slide show.
- A conceptual layer in GUI-based software that assumes the functionality of the "middle-man".