The most common and most likely answer to this crossword clue is the 10 letter word AEROPLANES
I've seen this crossword clue in The Daily Telegraph
A
E
R
O
P
L
A
N
E
S
Buddy explains!

The straight part
We know that "Jets, for example" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case jets, for example = aeroplanes.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 AEROPLANES mean?
AEROPLANES noun- A powered heavier-than-air aircraft with fixed wings.
- An airfoil.
- Any of various nymphalid butterflies, of various genera, having a slow gliding flight. Also called planes.
- To fly in an aeroplane.
- To transport by aeroplane.