Chews a sort of nut (6)
I believe the answer is:
cashew
'nut' is the definition.
(I know that cashew is a type of nut)
'chews a sort' is the wordplay.
'sort' indicates an anagram.
'chews'+'a'='chewsa'
'chewsa' anagrammed gives 'CASHEW'.
'of' acts as a link.
(Other definitions for cashew that I've seen before include "Edible nut" , "Acajou" , "Kidney shaped nut" , "Kind of nut" , "snack perhaps" .)