The most common and most likely answer to this crossword clue is the 8 letter word GERONIMO
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More clues leading to the result GERONIMO
- Brave leader upset over child for instance
- Call on falling bombs more, in opening shot
- Tribal chief’s love child, say, turning up
- He may have had reservations calling for jumper
- When returning, ring child and say “Here I come!”
- Worried no more gin– I’m going for it!
- On manoeuvres, more go in for a battle cry
- Brave leader upset over child, say
- One 15 44 33, he’s called for the high jump?
- Ignore stumbling medical officer giving war cry
Buddy explains!

The straight part
We know that "cry when leaving plane" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case cry when leaving plane = geronimo.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 GERONIMO mean?
GERONIMO interjection- A cry before jumping out of or into something (originally by American parachutists).