Fellow listener a few dread (8)
I believe the answer is:
fearsome
'dread' is the definition.
('fearsome' can be a synonym of 'dread')
'fellow listener a few' is the wordplay.
'fellow' becomes 'f' (abbreviation - of a society etc.).
'listener' becomes 'ear' (I've seen this before).
'a few' becomes 'some' (I've seen this before).
'f'+'ear'+'some'='FEARSOME'
(Other definitions for fearsome that I've seen before include "Awful" , "Formidable" , "Dreadful" , "Frightful" , "Fame rose and became frightening" .)