The most common and most likely answer to this crossword clue is the 10 letter word BESTSELLER
I've seen this crossword clue in Financial Times
B
E
S
T
S
E
L
L
E
R
More clues leading to the result BESTSELLER
- Coe backed narrator without initially spotting Rowling?
- A commercial success: what oenophiles long for, we’re told
- Pound invested in lesser bet — oddly, it’s bound to make money
- Top actor not quite becoming top author
- Successful book rep doing more business than the rest?
- Hit top note, returning after time without piano
- Outsmart rep number one
- Popular story reportedly where George kept his drink
- Top rep’s book?
- Maybe the Communist Manifesto — with Lenin’s lead — set rebels off?
Buddy explains!
The straight part
We know that "A commercial success" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a commercial success = bestseller.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 BESTSELLER mean?
BESTSELLER noun- A book or other product that has sold in large numbers.