Answer: topflight

AnswerCrossword Clue
TOPFLIGHT

First-rate!

TOPFLIGHT

Best of the best

TOPFLIGHT

The pilot is ..

TOPFLIGHT
Highest level
TOPFLIGHT
High-quality
TOPFLIGHTA-one.
TOPFLIGHTBest: Colloq.
TOPFLIGHTHighest ranking: Colloq.
TOPFLIGHTLike an ace pilot?