Possible Clues:

• Officer liable to be taken in by murderer
• 'O ...! my ...! our fearful trip is done' (Whitman)
• Biblical character without fitting rank
• Title that can precede the starts of 17-, 23-, 49- and 59-Across
• Killer's boxing clever, officer's found
• Rank that goes with the first parts of the answers to starred clues
• One hundred over a paint on 18 down
• Murderer taking in clever American police officer
• Leader inclined to lay into second man
• Officer fit to restrain murderer? On the contrary