Crossword clues for Once, a while back 4 letters:BACKLower-priced edition of a bookBACKWith 4-Down, "Likewise, dude!"BACKFootball positionBACKGridiron runnerBACKGridiron yard-gainerBACKPosteriorBACKBrowser commandBACKPlayer in an I formationBACKSafety, for oneBACKBehindBACKStand behindBACKBoston's ___ Bay.BACKSupply with fundingBACKGive an endorsement toBACKGive support toBACKOverdue, as payBACKBegin to parallel park, with "in"BACK__ and forth (to and fro)BACKFootball player.BACKWith 118-Across, subject of an I.R.S. requestBACKFront's oppositeBACKWord that can follow the start of 20-, 38- or 50-AcrossBACKSpine localeBACKWord cried after stay or comeBACKSupport with fundsBACKWhat a left arrow might meanBACKWord with alley or boneBACKWord that can precede 17, 25, 50, 59-Across and 11, 37-DownBACK___ and forthBACKOpposite of frontBACKHere againBACKSponsorBACKIn the pastBACKWith 20-Across, working again, aptlyBACKOne way to leanBACKSupport financiallyBACKLend support toBACKMove __ and forthBACKFundBACKBrowser buttonBACKNo longer on vacationBACKGridiron rusherBACKCome ___, Little ShebaBACKRearBACKSupply funding forBACKInside Out and ___ Again (Thanhhà Lai book)BACKIn town againBACKHow returners will be right?BACKPlayer like O.J.BACKSupport in a cause