1: Author of Matilda

5: Singular of elves

6: Adam's donation

8: Greatly pleasing or entertaining; 'What a ______ meal!'

10: An informal term for a father; rhymes with 'sad.'

12: Sally's husband in the comic strip 'Sally Forth'

13: Given formally or officially.

2: Exceptionally bad or displeasing.

3: A police officer who investigates crimes.

4: Cabinet dept. founded by Lincoln

5: Having come or been brought to a conclusion.

7: Being derived from.

9: Good-sized ensemble

11: Pass from physical life and lose all bodily functions necessary to sustain life.