Two-tone dessert, plainly presented (7)
I believe the answer is:
piebald
'two-tone' is the definition.
Both the answer and definition are adjectives.
Maybe there's an association between them I don't understand?
'dessert plainly presented' is the wordplay.
'dessert' becomes 'pie' (pie is an example of a dessert).
'plainly presented' becomes 'bald' (I can't explain this - if you can you should believe this answer much more).
'pie'+'bald'='PIEBALD'
Can you help me to learn more?
(Other definitions for piebald that I've seen before include "(Of an animal) marked in two different colours" , "(Horse) mottled with two colours" , "(Of horse) black and white in patches" , "(Of horse) patched with two colours" , "Two-coloured (horse)" .)