Clue: Inventor of Morse put off by cuts (6)
Answer: DEXTER
Explanation: Definition: Inventor of Morse
=Colin DEXTER, author of the *Inspector Morse* novels 
 **DETER**, with **X**="by"* cutting in
 *X="by" in multiplication or when describing dimensions of an object, as in '2×4' = 'two-by-four'