ITV sitcom that starred Hywel Bennett in the title role (7)
I believe the answer is:
shelley
(Other definitions for shelley that I've seen before include "Author of Frankenstein" , "Writer of To a skylark" , "Mary - - (Gothick writer)" , "Ode to the West Wind poet" , "Percy Bysshe . . . . . . ., great English poet" .)