Leaves Egypt after shock (6)
I believe the answer is:
rocket
'leaves' is the definition.
(I've seen this before)
'egypt after shock' is the wordplay.
'egypt' becomes 'ET' (eg on car number plates).
'after' is a charade indicator (letters next to each other).
'shock' becomes 'rock' (rock can mean to shock or stun).
'et' after 'rock' is 'ROCKET'.
(Other definitions for rocket that I've seen before include "Firework and salad ingredient" , "Soar" , "Salad leaves - move at great speed" , "Structure that flies by expelling gases - or a reprimand" , "Projectile firework" .)