Fabric sun hat turned out no good (8)
I believe the answer is:
shantung
'fabric' is the definition.
(I know that shantung is a type of fabric)
'sun hat turned out no good' is the wordplay.
'turned out' indicates an anagram (turn out can mean to organise).
'no good' becomes 'ng' (abbreviation).
'sun'+'hat'='sunhat'
'sunhat' anagrammed gives 'shantu'.
'shantu'+'ng'='SHANTUNG'
(Other definitions for shantung that I've seen before include "Kind of soft Chinese silk" , "Heavy silk fabric with a rough surface" , "material" , "A soft untreated Chinese silk" , "Heavy silk fabric originally made in China" .)