Staple shape for dishes (6)
I believe the answer is:
plates
'dishes' is the definition.
(plate is a kind of dish)
'staple shape' is the wordplay.
'shape' indicates an anagram.
'staple' anagrammed gives 'PLATES'.
'for' is the link.
(Other definitions for plates that I've seen before include "Staple for food containers" , "dentures" , "They're on the table" , "Eating utensils of staple kind" , "Flat dishes" .)