Crossword Clue:

a sudden good idea

Answer	Crossword Clue
POPINTOYOURHEAD	What a sudden idea may do
ONPAPER	Where a bad idea could look good
SHOULDI	"Do you think it's a good idea?"

SEEMED	Darkness "... Like a Good Idea at the Time"
BED	It's a good idea to sleep on it
ISAYYES	Words after a rhetorical "Is this a good idea?"