Plane tirade for asylum seeker, perhaps (7)
I believe the answer is:
migrant
'asylum seeker perhaps' is the definition.
(I know that asylum seeker is a type of displaced person)
'plane tirade' is the wordplay.
'plane' becomes 'mig' (fighter jet produced by Russian company MiG).
'tirade' becomes 'rant' (both can mean an angry outburst).
'mig'+'rant'='MIGRANT'
'for' is the link.
(Other definitions for migrant that I've seen before include "Itinerant" , "Animal moving seasonally" , "Changing habitat (bird)" , "Transient" , "Animal moving with the seasons" .)