The term 'Trix Alternative' can be broken down into two crossword solutions: ENNE (4 letters) and ETTE (4 letters). ENNE is an alternative name for the breakfast cereal 'Cheerios', while ETTE is an alternative name for the breakfast cereal 'Froot Loops'. Both cereals are produced by General Mills and are marketed as healthier alternatives to Trix, a sugary cereal also produced by General Mills.