Author in dreadful strop penning introduction to Ulysses (6)
I believe the answer is:
proust
'author' is the definition.
(Proust is an example)
'dreadful strop penning introduction to ulysses' is the wordplay.
'dreadful' indicates anagramming the letters.
'penning' indicates putting letters inside.
'introduction to' says to take the initial letters.
The first letter of 'ulysses' is 'u'.
'strop' anagrammed gives 'prost'.
'prost' enclosing 'u' is 'PROUST'.
'in' acts as a link.
(Other definitions for proust that I've seen before include "French novelist - stupor (anag)" , "Marcel ---, Fr. author" , "Great French novelist found in stupor" , "French author" , "See 8" .)