Rich poet almost on a roll (8)
I believe the answer is:
abundant
'rich' is the definition.
(associated in meaning)
'poet almost on a roll' is the wordplay.
I cannot really understand how this works, but
'a' could be 'an' and 'an' is found in the answer.
'roll' could be 'bun' (synonyms) and 'bun' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for abundant that I've seen before include "common" , "full" , "In plentiful supply" , "Plentiful, more than enough" , "Existing in large amounts" .)