The most common and most likely answer to this crossword clue is the 10 letter word GASTRONOME
I've seen this crossword clue in Financial Times
G
A
S
T
R
O
N
O
M
E
More clues leading to the result GASTRONOME
- Epicure, say, backs absorbing short study of stellar types
- By 7 in morning, one’s gazing at Galaxy endlessly?
- Gourmet banker from Basel perhaps devouring fancy roast
- The connoisseur among a consumer group?
- Good scientist, almost an epicure
- Connoisseur of stars imprisoned by subterranean guard
- Bon vivant, Zurich banker, devouring roast set out
Buddy explains!

The straight part
We know that "Epicure" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case epicure = gastronome.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 GASTRONOME mean?
GASTRONOME noun- A lover of good food; a connoisseur or gourmet