Gets excited about a point reached in development (5)

I believe the answer is:

stage

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'point reached in development' is the definition.
I can't tell whether this definition defines the answer.

'gets excited about a' is the wordplay.
'excited' is an anagram indicator.
'about' is an insertion indicator.
'gets' is an anagram of 'stge'.
'stge' going around 'a' is 'STAGE'.

Can you help me to learn more?

(Other definitions for stage that I've seen before include "Phase; mount" , "Form of transport" , "Put on (play); section of race" , "Produce" , "Platform for actors" .)

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

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