The most common and most likely answer to this crossword clue is the 10 letter word LABELMATES
I've seen this crossword clue in The Daily Telegraph
L
A
B
E
L
M
A
T
E
S
Buddy explains!
The straight part
We know that "Jerry Lee Lewis and 11 among others" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case jerry lee lewis and 11 among others = labelmates.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.
Crossword Answer definitions
LABELMATES noun- A musician or musical act signed to the same record label.