A Flight of Fancy

Compilers love the word FLIGHT, because it has so many different meanings in English, including (but not limited to) [1] A journey on a plane [2] The capability that birds have [3] Running away [4] A set of stairs. So, for example, "Mary and Joseph's flight destination (5)" would be EGYPT, "Flight to the wedding (9)" would be ELOPEMENT, and "In-flight security provider (8)" could be BANISTER. As The Beatles so very nearly said, here come's the pun! If you enjoy my crosswords, you'll LOVE the Cryptic Mystic's fantastic YouTube channel, which has been kind enough to feature a couple of my crosswords and is THE best resource for cryptic beginners: https://www.youtube.com/@The_Cryptic_Mystic