Miserable Mr Bean banned rhythm and blues (4)
I believe the answer is:
mean
'miserable' is the definition.
(thesaurus)
'mr bean banned rhythm and blues' is the wordplay.
I cannot quite see how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is found in the answer.
The remaining letters 'mea' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for mean that I've seen before include "Intend; stingy" , "Aim - low - average" , "Paltry" , "Signify; average" , "Mid-point" .)