Answer: flewsolo

AnswerCrossword Clue
FLEWSOLO

Took up a Piper Cub, perhaps

FLEWSOLO

Piloted alone

FLEWSOLO

Had no copilot

FLEWSOLO
Traveled alone, perhaps
FLEWSOLO
Didn't join forces
FLEWSOLOHad no co-pilot
FLEWSOLOWent without a copilot
FLEWSOLOActed alone
FLEWSOLOWhat Lindbergh famously did from New York to Paris