dieter doesnt mean to be eaten right? it means to regulate what you eat. wouldnt the answer to 6 be tiered...althought i dont see where the definiton would be
The definition is "being this?" "this" being a dieter. The "?" often indicates that the setter is taking a few liberties with cryptic conventions for the sake of a clever surface reading.
so "mend 6" now becomes "mend dieter", "differently" (anagram) yields determined