CLEVER CROSSWORD CLUES III

1. Heads for the hills
2. Opposite of out
3. Classic beginning and ending
4. High beams
5. It turns into a different story
6.
7. Second in six
8. Rule contradicted by science
9. Hemingway decides to sleep in
10. It always gets a rise out of an audience
11. London broil, Baked Alaska, Roast Turkey
12. It's often left hanging
13. Conventional women
14. Modern art
15. Place for signatures
16. Early morning riser
17. I saw
18. Hamlet's cousin
19. B's 5 and C's 6
20. Unsurpassed, or surpass
21. Elton's john
22. Illegal firing
23. Help-wanted sign
24. Two
25. Three

Answers:

1. MOUNT RUSHMORE
2. SAFE (baseball) 
3. HARD C 
4. RAFTERS
5. SPIRAL STAIRCASE
6. I HAVE NO CLUE
7. SHORT I
8. I BEFORE E EXCEPT AFTER C 
9. A FAREWELL TO ALARMS
10. NATIONAL ANTHEM
11. GLOBAL WARMING
12. ART
13. NUNS
14. ARE
15. CAST
16. SUN
17. CAESARIAN SECTION
18. VILLAGE
19. ATNOS [Atomic Numbers] 
20. BEST
21. LOO
22. ARSON
23. SOS
24. COMPANY
25. A CROWD