Converse of object

• become: From the 1940's onwards, Brandt became a sought-after portraitist.

Adjective modifier

• leading: He soon attracted the attention of the city's leading portraitist, David Martin.

• successful: You can see why even successful portraitists might tire of the job.

• sought-after: From the 1940's onwards, Brandt became a sought-after portraitist.