Crossword Genius

Euphoric in A380? (4)

Ross

I believe the answer is:

high

I'm a little stuck... Click here to teach me more about this clue!

'euphoric' is the definition.
(I've seen this before)

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for high that I've seen before include "Tall - loud - under the influence of drugs" , "Important, elevated" , "Eminent; lofty" , "on a trip" , "Over-excited" .)

I've seen this clue in The Sun.
Want a hint initially instead of a full solution? Install my app