Endless strain suppressed by a supporter from Tunisia, say (7)
I believe the answer is:
african
'tunisia say' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'endless strain suppressed by a supporter' is the wordplay.
'endless strain' becomes 'ric' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'suppressed by' is an insertion indicator (I've seen this in other clues).
'supporter' becomes 'fan' (fan is a kind of supporter).
'a'+'fan'='afan'
'ric' inserted within 'afan' is 'AFRICAN'.
'from' is the link.
Can you help me to learn more?
(Other definitions for african that I've seen before include "From the second largest continent" , "Kikuyu possibly" , "Shona" , "Like some elephants" , "Continental" .)