Jethro Tull

As the moon slips up, and the sun sets down,
Im a highrise jockey, and Im heaven-bound.
Do the workboot shuffle, loose brains from brawn.
Im a monkey puzzle and the lid is on.
Can you guess my name? can you guess my trade?
Im going to catch you anyway.
You might be right. Ill give you guesses three.
Feel me climbing up your knee.
Guess what I am. Im a steel monkey.
Now some men hustle and some just think.
And some go running before you blink.
Some look up and some look down
From three hundred feet above the ground.
Can you guess my name? and can you guess my trade?