Russian plane has the speed to go to another country (7)
I believe the answer is:
migrate
'go to another country' is the definition.
I can't judge whether this defines the answer.
'russian plane has the speed' is the wordplay.
'russian plane' becomes 'MiG' (MiG is a Russian aircraft manufacturer).
'has' is a charade indicator (letters next to each other).
'the speed' becomes 'rate' (the speed at which something happens).
'mig'+'rate'='MIGRATE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for migrate that I've seen before include "Move with the seasons" , "Move to a new area" , "Change habitat (seasonally, perhaps)" , "Move from one country to another to settle" , "Ragtime (anag)" .)