My 8, 7, 5, 9 is a number.

My 10, 3, 12, 13 is to kill.

My whole is a celebrated day.

15. 1 YY 1 OWN cit.
c

16. Entire, I am a sentence; behead me, and I am a fortress; curtailed, I am to strive violently; now transpose, and I am inexperienced.

17. Behead a slipping, and leave the slip.

18.