The most common and most likely answer to this crossword clue is the 8 letter word BALLYHOO
I've seen this crossword clue in The Daily Telegraph
B
A
L
L
Y
H
O
O
More clues leading to the result BALLYHOO
- Uproar when brown bear traps leaders of large youth hostel
- Hallo: boy’s created a fuss
- After party, ruffian wanting a rumpus
- Racket’s target? Thug renouncing a racket
- Second-rate friend who discussed creating a fuss
- Party overcoming brute without a fuss
- Dance with lout, without a fuss
- Fuss created by welcoming everybody who should be heard
- Everyone taken in by most of band’s blatant publicity
- Times grabs a couple of students who heard commotion
Buddy explains!

The straight part
We know that "blatant publicity" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case blatant publicity = ballyhoo.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 BALLYHOO mean?
BALLYHOO noun- Sensational or clamorous advertising or publicity.
- Noisy shouting or uproar.
- To sensationalise or make grand claims.
- Certain species in family Hemiramphidae, inshore, surface-dwelling needlefish forming sizeable schools.
- An unseaworthy or slovenly ship.