Line taken by part of Europe or part of Africa (7)
I believe the answer is:
liberia
'part of africa' is the definition.
(African nation)
'line taken by part of europe' is the wordplay.
'line' becomes 'l' (used when specifying particular lines from a poem).
'taken by' says to put letters next to each other.
'part of europe' becomes 'Iberia' (peninsula including Spain and Portugal).
'l'+'iberia'='LIBERIA'
'or' is the link.
(Other definitions for liberia that I've seen before include "African country, established by the US in 1822" , "One of the African nations" , "Monrovia's country" , "West African country, capital Monrovia" , "W African Republic" .)