Shoot airmen and get out (9)
I believe the answer is:
germinate
'shoot' is the definition.
('germinate' can be a synonym of 'shoot')
'airmen and get out' is the wordplay.
'and' says to put letters next to each other.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'airmen'+'get'='airmenget'
'airmenget' with letters rearranged gives 'GERMINATE'.
(Other definitions for germinate that I've seen before include "Spring up" , "Put forth shoots, develop and grow" , "(Of seeds) sprout" , "come to life" , "Sprout - develop" .)