Useful Material Or Knowledge Crossword Clue 5 2 3 4 -

— no, that’s 5,6. "INSIDE INFO" — 6,4.

But I think I’ve found it: in crossword puzzles, “useful material or knowledge” (5,2,3,4) = ? No.

However, the pattern 5,2,3,4 exactly matches: — but that’s 5,3,4,4 — close but “YOU” is 3, so 5,3,4,4 = STUFF YOU NEED — not 2 in second slot.

Hold — — too long.