Guess the singer/songwriter, and what is a "yellow delanie".

Question

A simple garden, with acres of sky
A brown-haired dogmouse
If one dropped by
Yellow delanie would sleep well at night
With everything emptying into white.

Answer 1

Cat Stevens
"Into White"
There's a painter, Beauford Delaney, who's known for a series of works done primarily in the color yellow, like self-portrait and yellow abstraction.