Conquered one achievement, inspiring another (8)
I believe the answer is:
defeated
'conquered' is the definition.
(similar in meaning)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for defeated that I've seen before include "Won victory over" , "Whacked" , "Thrashed" , "Beat; beaten" , "thwarted" .)