Staple fixed dishes (6)
I believe the answer is:
plates
'dishes' is the definition.
(I know this)
'staple fixed' is the wordplay.
'fixed' is an anagram indicator.
'staple' anagrammed gives 'PLATES'.
(Other definitions for plates that I've seen before include "Flat dishes" , "Strange staple for crockery items" , "dentures" , "Eating utensils of staple kind" , "Shallow dishes" .)