The most common and most likely answer to this crossword clue is the 5 plus 5 letter word PRESS AGENT
I've seen this crossword clue in Financial Times
P
R
E
S
S
A
G
E
N
T
More clues leading to the result PRESS AGENT
- Sink's blocked here? He'll provide a plug?
- A chap tailing smooth PR person
- Display herb for European publicist
- Pressure on sergeants performing for publicist
- Publicist with gift for concealing decline
- Commandeer a good egg, a publicity-seeker
- Iron Man engaging a publicist
- Call for middleman and publicist?
- Publicist here admits flop
- Media representative gift wrapping flag
Buddy explains!

The straight part
We know that "publicist" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case publicist = press agent.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.