I am Jack.
– My family is royalty in a deck of cards, King, Queen and JACK.
– My headgear (or crown) was broken in the nursery rhyme “JACK and Jill”.
– I hide in a box as a JACK in the Box
– In another nursery rhyme, I’m told “JACK be nimble…”
– I work hard as a JACKhammer, being a road Cracker(JACK).
– When you have a flat tire on the side of the road, you need a JACK.
– You call out my name in the game of BlackJACK
– I’m scary on a plane when it’s “high” (as in hiJACK).
– I’ll give you a grin on an October (Halloween) night as a JACK-o’-lantern
– Finally, I’m thin and my wife is fat in the JACK Sprat nursery rhyme. Also, the first letter of each line in the hint spells out “JACK”.