Having the wisdom not to get excited (13)

I believe the answer is:

philosophical

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

'excited' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for philosophical that I've seen before include "Calmly uncomplaining" , "Calm and stoical in the face of setbacks" , "Stoical in defeat" , "Uncomplaining in defeat" , "Serene in the face of adversity" .)

I've seen this clue in The Globe and Mail.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.