The most common and most likely answer to this crossword clue is the 9 letter word IMPORTANT
I've seen this crossword clue in Financial Times
I
M
P
O
R
T
A
N
T
More clues leading to the result IMPORTANT
- Crucial to bring in worker
- I am dock worker material
- Crucial I'm left with worker?
- Weighty foreign product containing bronze
- Big guy gripping ruby maybe cracks it
- Bring in, from abroad, worker? It’s vital
- Eminent MP men flog during sex
- I am left by social worker to provide material
- Fellow stashing wine on board – it’s of great concern
- Bring in worker from abroad? It’s vital
Buddy explains!

The straight part
We know that "Eminent" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case eminent = important.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 IMPORTANT mean?
IMPORTANT adjective- Having relevant and crucial value.
- Pompous; self-important.