Crossword Genius

Exceptionally valiant north European (7)

Ross

I believe the answer is:

latvian

Here is my best explanation:

'north european' is the definition.
(Latvia is in northern Europe)

'exceptionally valiant' is the wordplay.
'exceptionally' indicates anagramming the letters.
'valiant' with letters rearranged gives 'LATVIAN'.

This clue was last seen in The Telegraph