What pilot may do, caught in European plane (5)
I believe the answer is:
eject
'what pilot may do' is the definition.
(I've seen this before)
'caught in european plane' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'in' means one lot of letters goes inside another.
'european' becomes 'e' (abbreviation e.g. EU).
'plane' becomes 'jet' (jet is a kind of plane).
'e'+'jet'='ejet'
'c' inserted within 'ejet' is 'EJECT'.
(Other definitions for eject that I've seen before include "Throw out violently" , "Dismiss" , "Video button" , "Suddenly throw out" , "Force out violently" .)