Russian fighter helping people moving (9)
I believe the answer is:
migration
'people moving' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'russian fighter helping' is the wordplay.
'russian fighter' becomes 'MiG' (Russian fighter plane manufacturer).
'helping' becomes 'ration' (a ration is a serving or helping).
'mig'+'ration'='MIGRATION'
Can you help me to learn more?
(Other definitions for migration that I've seen before include "Mass movement" , "The movement of people or animals from one locality to another" , "Seasonal movement of animals or birds" , "Periodic movement of groups of animals" , "Roaming it? (anagram)" .)