European countries importing foremost of Maya Angelou's releases? (10)

'releases?' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Perhaps there's a link between them I don't understand?

'european countries importing foremost of maya angelou's' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'countries' becomes 'nations' ('nation' can be a synonym of 'country').
'importing' is an insertion indicator.
'foremost of' says to take the initial letters.
The initial letters of 'maya angelou' is 'ma'.
'e'+'nations'='enations'
'enations' enclosing 'ma' is 'EMANATIONS'.

Can you help me to learn more?