Possible Clues:

• Beware a black one
• Like a cat that has to be paid, by the sound of it, on the line
• Nothing up in the charge for a cat
• Catty, perhaps
• Like a cat
• Puma, e.g.
• Part of steel cable needed for lion, say
• (Relating to a) cat
• Give a catty turn to the French in a splendid way
• Nothing back in the fee for the start of 13 across