Crossword Clue:

Not know from be clueless about

AnswerCrossword Clue
ADAMNot know from ... (be clueless about)
ATOBNot know from ... (be ignorant)
ADAMNot know from ... (be unfamiliar with)
ATONot know from .. B: be ignorant
INONNot clueless about
THELEASTTHINGNot know ... about.