Answer: hatless

AnswerCrossword Clue
HATLESS

Like ballplayers during the national anthem

HATLESS

Uncovered, in military jargon

HATLESS

Uncovered, in a way

HATLESS
Bareheaded
HATLESS
How JFK attended his inauguration
HATLESSUncovered.
HATLESSSans sombrero.
HATLESSUncovered
HATLESSLike J.F.K. at his inauguration
HATLESSLike JFK, in most photographs
HATLESSObviously bald