Is island surrounded by fish here in North Africa? (7)
I believe the answer is:
tunisia
'here in north africa?' is the definition.
(North African country)
'is island surrounded by fish' is the wordplay.
'island' becomes 'i' (geographical abbreviation).
'surrounded by' indicates putting letters inside.
'fish' becomes 'tuna' (tuna is a type of fish).
'is'+'i'='isi'
'isi' inserted into 'tuna' is 'TUNISIA'.
(Other definitions for tunisia that I've seen before include "Land" , "As Inuit visits there in North Africa" , "Country between Algeria/Libya" , "North African republic" , "African republic on the Mediterranean coast" .)