Stew — raw, yet tasteless (6)
I believe the answer is:
watery
'tasteless' is the definition.
(thesaurus)
'stew raw yet' is the wordplay.
'stew' is an anagram indicator.
'raw'+'yet'='rawyet'
'rawyet' anagrammed gives 'WATERY'.
(Other definitions for watery that I've seen before include "Weak, too diluted" , "Aqueous" , "Overly diluted, thin" , "Dilute; weak, pale" , "Insipid" .)