% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for led off.

AnswerClue
LEDDrove
LEDSParts of many traffic signals, briefly
LEDTopped one's division
LEDBrought about, with "to"
LEDWas first to bet, in poker
LEDWas in command
LEDMade the important decisions
LEDChaired
LEDFluorescent bulb alternative, for short
LEDSSome traffic signal lamps
LEDWas ahead of, or was a head of
LEDShepherded
LEDGuided, as a tour
LEDTook control
LEDWas in charge
LEDTaught a class
LEDTook the initiative
LEDServed as point man
LEDCalculator display, for short
LEDEntered some numbers, perhaps
LEDPut the first card down
LEDWas a trailblazer
LEDCertain TV tech
LEDHad nobody ahead
LEDOpened a hand
LEDRock's __ Zeppelin
LEDZeppelin starter?
LEDStarted the trick
LEDDid a tour?
LEDOrganized
LEDWas on first
LEDRan point
LEDPioneered
LEDWas in the vanguard
LEDZeppelin preceder
LEDWas in front
LEDWent in front
LEDSLights of a type
LEDTook command
LED--
LEDWas winning
LEDWas ahead of the curve
LEDDigital watch display, briefly
LEDDirected
LEDHeld first place
LEDTook the helm
LEDActed as tour guide
LEDActed like a chair
LEDSGlow stick contents, briefly
LEDBlazed the trail