The most common and most likely answer to this crossword clue is the 8 letter word CALLISTO
I've seen this crossword clue in Financial Times
C
A
L
L
I
S
T
O
More clues leading to the result CALLISTO
- Buzz first over moon
- Astronomical list obviously includes this
- Satellite phone, one with extremely strident ring
- Galilean satellite first penetrating rings
- Satellite dish unveiled before going on demand
- Satellite phone is shut
- Satellite phone and its unusual ring
- Satellite first going between rings?
- Name is given to satellite of Jupiter
- Shout is in the direction of nymph
Buddy explains!
The straight part
We know that "Astronomical list obviously includes this" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case astronomical list obviously includes this = callisto.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.