Shoot up? Airmen get wounded (9)
I believe the answer is:
germinate
'shoot up?' is the definition.
(thesaurus)
'airmen get wounded' is the wordplay.
'wounded' is an anagram indicator.
'airmen'+'get'='airmenget'
'airmenget' anagrammed gives 'GERMINATE'.
(Other definitions for germinate that I've seen before include "Put forth shoots, develop and grow" , "Mere giant (anag) - start to grow" , "Sprout - develop" , "Spring up" , "come to life" .)