French writer shows real bias unfortunately (8)
I believe the answer is:
rabelais
'french writer' is the definition.
(I've seen this before)
'real bias unfortunately' is the wordplay.
'unfortunately' indicates anagramming the letters.
'real'+'bias'='realbias'
'realbias' is an anagram of 'RABELAIS'.
'shows' is the link.
(Other definitions for rabelais that I've seen before include "Sixteenth century French author of Gargantua and Pantagruel" , "16th-century French satirist, noted for earthy humour" , "Racy writer" , "teller of stories" , "French writer" .)