The most common and most likely answer to this crossword clue is the 8 letter word ISOBARIC
I
S
O
B
A
R
I
C
More clues leading to the result ISOBARIC
- I cry a river; in charge, having the same pressure
- Having equal pressure and current, or basic fuses
- CIA meeting with Boris for a change, levelly maintaining pressure
- Description of part of weather map is ‘Nothing except a lot of ice’
- One with a note by the inn in-charge on the nature of certain lines in a meteorological map
- Having constant pressure, I howl and bend over, start to introspect
Buddy explains!

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.