Crossword puzzle clue "replacement grass perhaps"

Replacement grass, perhaps

Grass court grass

Writer of the lines "Pigeons on the grass alas. / Pigeons on the grass alas"

Ground covered by a mat of grass and grass roots

Cartoon in which one cow says to another "Hey, wait a minute! This is grass! We've been eating grass!"

Your replacement, perhaps?

Humphrey's replacement

Cutlass replacement