Crossword puzzle clue "hidden grass"

Hidden grass?

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!"

Keep hidden, perhaps

Place to live (different ones are hidden in this puzzle's four longest answers)

Muscles that might be hidden by a beer belly