Choose to get out of the helicopter (3)
I believe the answer is:
opt
'choose' is the definition.
(both can mean to pick something)
'out of the helicopter' is the wordplay.
'out of' says the answer is hidden in the clue.
'OPT' is hidden in the letters of 'helicopter'.
'to get' is the link.
(Other definitions for opt that I've seen before include "Have preference for something" , "Decide between possibilities, choose" , "Prefer, choose" , "Choose from pot" , "Pick from pot" .)