Ivor —, Welsh actor, songwriter and dramatist born David Ivor Davies in 1893 (7)
I believe the answer is:
novello
(Other definitions for novello that I've seen before include "Ivor --, composer/actor" , "he used to make up the numbers" , "Ivor --, songwriter" , "popular composer" , "Ivor --, Welsh singer, actor, composer" .)