Plan he abandons finally (6)
I believe the answer is:
intend
'plan' is the definition.
(I know that plan is a more specific form of intend)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for intend that I've seen before include "Mean (to do something)" , "Mean; propose" , "Aim, plan" , "1 dn [DESIGN]" , "Have as purpose or resolve" .)