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

Crossword clues for A while back 4 letters

AnswerClue
BACKRunning attachment
BACKPlace for a pat
BACKWord cried after stay or come
BACKLead-in to lash or log
BACKSafety, for one
BACKSpine locale
BACKPlayer like O.J.
BACKOverdue, as pay
BACKAgo
BACKIt makes a stool a chair
BACK___ to the Future
BACKSee 1-Down
BACKBehind
BACKPosterior
BACKEndorse
BACKProvide support for
BACKIn the past
BACKWith 20-Across, working again, aptly
BACKSupport financially
BACK__ and forth
BACKFootball man
BACKType of seat
BACKStabler or Simpson
BACKSpring forward, fall ___
BACKSafety, e.g.
BACKGridiron yard-gainer
BACKMissing word in 21-, 31-, 40- and 50-Across, applied literally
BACKWord that can follow the start of 20-, 38- or 50-Across
BACKWith 28-Down, part of a golf course
BACKIn town again
BACKWith 4-Down, "Likewise, dude!"
BACKSupport
BACKBet on
BACKSponsor
BACKCome ___, Little Sheba
BACKGive support to
BACKBe an angel
BACKDrive in reverse, with "up"
BACKGridiron runner
BACKOne way to lean
BACKFurnish with funds
BACKFootball position
BACKHere again
BACKPlayer in an I formation
BACKBrowser button
BACKBoston's ___ Bay.
BACKForth's opposite
BACKO.J., for one
BACKPull for
BACKGet behind