First-rate, top-notch (5)
I believe the answer is:
super
(Other definitions for super that I've seen before include "Prefix meaning terrific or great" , "First-rate, top-notch" , "Spiffing!" , "Delightful" , "Informally terrific, splendid" .)
I believe the answer is:
super
(Other definitions for super that I've seen before include "Prefix meaning terrific or great" , "First-rate, top-notch" , "Spiffing!" , "Delightful" , "Informally terrific, splendid" .)