Fighter meets sailor going elsewhere (9)

I believe the answer is:

migrating

'going elsewhere' is the definition.
(eg migrating to another country)

'fighter meets sailor' is the wordplay.
'fighter' becomes 'mig' (fighter jet produced by Russian company MiG).
'meets' means one lot of letters go next to another.
'sailor' becomes 'rating' (British term for a naval enlisted man).
'mig'+'rating'='MIGRATING'

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