Wasn't allowed to succeed? (12)
I believe the answer is:
disinherited
'wasn't allowed' is the definition.
I can't tell whether this defines the answer.
'succeed?' is the wordplay.
I cannot really understand how this works, but
'succeed?' could be 'inherit' (I've seen this before) and 'inherit' is present in the answer.
This explanation may well be incorrect...
'to' acts as a link.
Can you help me to learn more?
(Other definitions for disinherited that I've seen before include "Cut off" , "Written out of a will" .)