Embark upon undertaking, wanting to pry (5)
I believe the answer is:
enter
'embark' is the definition.
(I know that embark can be written as enter)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for enter that I've seen before include "Introduce" , "Record - stage direction - come in" , "Enlist, join up" , "Register (as a competitor)" , "Move into" .)