Designs some tasty lessons (6)
I believe the answer is:
styles
'designs' is the definition.
(styling is a kind of designing)
'some tasty lessons' is the wordplay.
'some' indicates a hidden word (some parts of the word are used).
'STYLES' can be found hidden inside 'tasty lessons'.
(Other definitions for styles that I've seen before include "Manners or ways doing things" , "Fashions and manners" , "Fashions,modes" , "Ways of writing, painting etc" , "Fashions or ways of doing things" .)