Crossword Genius

What steeplejack did, being agitated? (6,2)

Ross

I believe the answer is:

worked up

I'm a little stuck... Click here to teach me more about this clue!

'agitated?' is the definition.
Although both the answer and definition are past participle verbs, I don't see how they can define each other.

I can't explain the remainder of the clue.

Can you help me to learn more?

(Another definition for worked up that I've seen is " In a tizzy".)

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