Possible Clues:

• Sloping, but not precipitous
• Soak is husband? That's rather exaggerated!
• Piste he's rambling around is somewhat precipitous
• Soak one’s hair at first — it’s fairly excessive
• Quite expensive
• To soak is hard, and a bit expensive
• Quite difficult to sort out the spies
• Revised order for the spies could be quite expensive
• Rather high