Answer:

jack

Answer	Crossword Clue
JACK	Either of the two highest trump cards in euchre
JACK	Beanstalk climber in a children's story
JACK	Diddly-squat

JACK	Trunk item
JACK	Phone hook-up
JACK	Moolah
JACK	Telephone device
JACK	It's an honor
JACK	Item in a trunk
JACK	Part of a royal flush