Possible Clues:

• Wonderful (person or thing)
• Excellent, slangily
• Solve case for employer with Detective Frost, perhaps, who's exceptionally good?
• Super
• First-rate or top-of-the-line
• Starting to catch a jerk stumbling into crevice? Splendid!
• Excellent banger at Christmas dinner, standard
• Caramel popcorn brand
• One takes the biscuit, as against a donkey?
• Biscuit with salt -- that's a great thing