Crossword puzzle clue "words after well ain't that"

Words after "Well, ain't that"

Writer who said "One cannot think well, love well, sleep well, if one has not dined well"

He said "Slump? I ain't in no slump. I just ain't hitting"

"Sometimes I ain't so sho who's got ___ a right to say when a man is crazy and when he ain't" (William Faulkner)

The Cult "I ain't no sucker, I ain't no ___"

"Ain't" ain't part of it

What "ain't" ain't

Last words from Hamlet (well, he goes on for a while after that, but these words sum it up)