Despair initially avoided may become hope (6)
I believe the answer is:
aspire
'hope' is the definition.
(I've seen this in another clue)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for aspire that I've seen before include "Have a strong desire to achieve something" , "Persia (anag.)" , "Wish to rise (to)" , "Long" , "I spare (anag.)" .)