Answer: supersonic

AnswerCrossword Clue
SUPERSONIC

Like some fast planes

SUPERSONIC

Like the Concorde

SUPERSONIC

Part of SST

SUPERSONIC
Seattle hoopster
SUPERSONIC
Describing the speed of jets.
SUPERSONICPast the sound barrier.
SUPERSONICTraveling at a great speed.
SUPERSONICMore than 750 mph.
SUPERSONICFaster than sound.
SUPERSONICSeattle basketeer
SUPERSONICFaster than sound
SUPERSONICBoom-causing, perhaps
SUPERSONICGreater than Mach One
SUPERSONICLike some jets