Possible Clues:

• Newly initiated into food authority
• My work could affect a person's tastes, as 'Cube' by non-cubist
• Initiated new provisional authority?
• The food he recommends wil make th painter pass away
• One concerned about what people eat initiated changes
• Hospital staffer
• Artist had to perish before one could tell him what to eat
• Long to meet artist, one who regulates courses
• Dreadful artist in broadcast who tells you what to eat
• Catering manager's stamp — red