Each of the twelve 6-letter words must be written by listing the letters in alphabetical order (left-to-right in rows; top-to-bottom in columns).
The grid is 6 by 6.
Here are the clues.
1. Give in (to) 1. Muddleheaded
2. Jeer at 2. Like friendly animals
3. Polished 3. Valiant
4. Water, juice or oil 4. Small burger appetizer
5. You, for this puzzle 5. Costume sparkler
6. In a bad-tempered way 6. Questionnaire
A true friend is a friend in spite of, not because of.