L1E1A1D2
5 points
LEAD is validvalid
to cover with the chemical element whose atomic number is 82 [v LEADED, LEADING, LEADS] / to show the way to by going in advance [v LEADING, LEADS, LED] : LEADABLE [adj]
to go in advance [v LED, LEADING, LEADS] / to cover with a heavy metallic element [v -ED, -ING, -S]