The most common and most likely answer to this crossword clue is the 7 letter word TOUCANS
I've seen this crossword clue in The Times
T
O
U
C
A
N
S
Buddy explains!
The straight part
We know that "They’re billed a huge amount/" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case they’re billed a huge amount/ = toucans.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 TOUCANS mean?
TOUCANS noun- Any of various neotropical frugivorous birds from the family Ramphastidae, with a large colorful beak.