Trumpet: Hockney made a bigger one? (6)
I believe the answer is:
splash
'trumpet' is the definition.
(both can mean to publish in a newspaper)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for splash that I've seen before include "Effect of body hitting water" , "Make liquid fly around" , "Drop" , "Spend freely or make wet" , "Accidentally get liquid on" .)