Appeared to act? (7)

I believe the answer is:

entered

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'appeared' is the definition.
The definition and answer can be both to do with creating things as well as being past participle verbs.
Maybe 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 entered that I've seen before include "Put down" , "Came in; recorded" , "Enrolled or went in" , "Logged; arrived" , "moved in" .)

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

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