Possible Clues:

• Start of a popular palindrome
• Not a sound cane for the seaman
• First in line doesn't appear to be competent
• "___ to leap tall buildings . . ."
• Competent third man from what we hear
• Am I so competent as to be friendly?
• - -bodied; - seaman
• Hear that Cain's brother can
• Competent and equipped
• Efficient porter grabbed first of bags